Hiking Trails

Punkaharju's naturally gorgeous landscape offers excellent opportunities for hikes of different lengths. There are two marked trails in Laukansaari Research Park and the Kokonharju Esker area and two trails on the Esker area . Additionally there are numerous unmarked but clearly visible trails through the terrain.

Starting Points for Trails

  • The Kokonharju Trail and Puulajireitti Tree Species Trail all have their starting point in Laukansaari Research Park's parking area at the place called the old school at Punkaharju, on the north side of main road 14. To get to the starting point turn off main road 14 in the direction indicated by the signpost for "Tutkimuspuisto" (Research Park). There is a parking area as well as an information boards at the starting point on the grounds of the old school building.
  • Visitors can set off on the esker area's  trails from Tuunaansaari, Lusto or the rest spot on the ridge.

The Harjureitti Trail, 4 km

Photo: Metsähallitus

The Harjureitti Trail is 4 km long and easily accessible for most of the way. Running through beautiful lakeside scenery, the trail will occasionally crest a high esker and offer stunning views of the Punkaharju national landscape. Sturdy stone steps will aid your climb to the top. The route is marked with orange paint symbols. There is no winter maintenance on the trail.

  • Topeliuksen luontopolku Nature Trail (2,5 km) is part of Harjureitti Trail. The lit trail is surrounded by old pines and lake landscapes.

Photo: Sanna-Kaisa Rautio.

The accessible trail runs for 0.3 km and is suitable for wheelchairs over its entire length, from the parking area at Kruunupuisto to the scenic Valkealampi pond. The route is marked with orange paint symbols. There is no winter maintenance on the trail.

The Kuikon Salpa trail, 0.7 km

Photo: Sanna-Kaisa Rautio

The Kuikon Salpa trail is 0.7 km long. As you pass through the airy pine stands, take time to explore the dugouts and trenches beside the trail. The trail is fully accessible and marked with orange paint symbols. There is no winter maintenance on the trail.

Kokonharju Trail, 3 km

Kokonharju Trail is 3 km long and leads through the Kokonharju Esker old-growth forest. Some of Finland's tallest trees grow along this trail. The trail leads across varying terrain and the ascents on the ridge and descents from there can be steep. Wet spots have duckboards laid across them. The trail is marked with orange paint symbols. There is no winter maintenance on the trail.

Puulajireitti Tree Species Trail, 5.3 km 

Photo: Kati Vähäsarja

Puulajireitti Tree Species Trail is 5.3 km long and features 30 different tree species. Along the trail there is the area's oldest forest, Montelli larch forest, which was planted already in 1877. The trail is easy to travel and follows the gravel roads which zigzag through the arboretum area. The trail is marked with red paint symbols and signposts.

Cross-country Skiing Trails

The Länsi-Punkaharju village association maintains a 7,5-km-long circular ski trail known as Metlan lenkki Trail in Laukansaari area as well as several other ski trails in the Punkaharju area. Karjalankallio lean-to shelter, where visitors can enjoy a packed meal beside a campfire, is situated on Metlan lenkki ski trail. The trail is suited for either classical or free-style cross-country skiing.

Biking Trails

Cycling is permitted on the area's roads and trails separately marked with bike symbols.

Accessible Nature Trails 

The Accessible Trail, 0.3 km

The demanding accessible trail runs for 0.3 km and is suitable for wheelchairs over its entire length, from the parking area at Kruunupuisto to the scenic Valkealampi pond. The trail goes gently uphill and has a smooth surface. For about 10 metres, the incline is 9–10% and for this reason, the trail is classified as a demanding accessible nature trail. An assistant is recommended for wheelchair users.
The route is part of the Harjureitti Trail and is marked with orange paint symbols. There is no winter maintenance on the trail.

The Accessible Trail Map (excursionmap.fi)

Karjalankallion huilaus 1.2 km, demanding accessible circle trail 

Demanding accessible trail symbol.
Demanding accessible nature trail. 
During snow-free season. No winter maintenance. 
The hike takes between 30 and 60 minutes, depending on your functional capacity, the assistive devices used and whether you are accompanied by an assistant. 

On the nature trail running through the Punkaharju Research Park, the forest nature and its sounds and scents are both an enchanting and relaxing experience. You can read more about the wellbeing impacts of nature in the information boards along the trail. We suggest that you take a break on the shores of Lake Puruvesi at the picnic site halfway through the trail or at the magnificently located Karjalankallio lean-to shelter to which you can make a short side trip from the trail. 

Starting point
Address: Karjalankallio parking area, Puistometsäntie 279, Savonlinna 
The Karjalankallio parking area is located on a gentle slope, and it is paved with stone dust. There are two accessible parking spaces in the parking area. 
Coordinates: WGS84 - lat: 61° 48.959' lon: 29° 19.671', ETRS-TM35FIN - P: 6855879 I: 622643 

Hiking structures

  • Halfway through the trail, there is a lakeside picnic site with table and benches. The table has a height of about one metre. 
  • At the start of the trail, you can make a short side trip (about 150 metres) to the Karjalankallio lean-to shelter: The Karjalankallio lean-to shelter has a covered campfire site, which is also accessible for wheelchair users. 
  • The dry toilet at Karjalankallio is accessible via a ramp (slope 4%) and the doorway is one metre wide. There is no empty space on either side of the toilet seat, but the toilet has support rails and sufficient longitudinal clearance so that you can use it independently or assisted. There may not be enough space for a wheelchair to turn around inside the toilet. 
  • The Karjalankallio firewood shelter is not fully accessible, as there is a threshold. 
  • There are three benches along the trail. 
  • You can read about the wellbeing impacts of nature in the five information boards along the trail. The information boards are at the height of about one metre. You can also listen to the text content of the information boards using the QR codes found on the boards. 

Trail description

Trail markings: yellow spots in wooden signs. 
Recommended direction: clockwise 

Due to height differences, the trail is classified as a demanding accessible trail. Some of the climbs and descents have a slope of more than 8% and there is a small number of long uphill sections on the trail. An assistant is recommended for wheelchair users. Using the cam wheel makes it easier to move forward in a wheelchair. 

The trail is 2–3 metres wide throughout, except for the side trip to an old-growth forest towards the end of the hike. The path is paved with stone dust and mostly runs on a hard surface. 

The trail begins at the Karjalankallio parking area and starts with an uphill section of about 150 metres (slope of 8–14%). From the junction, the trail continues to the right. When at the junction, you can also make a side trip to the nearby Karjalankallio lean-to shelter by turning left instead of right. To reach the lean-to shelter, you must first descend about 100 metres (slope of about 10%) and for the last 40 metres, the trail is about 1.2 metres wide and paved with stone dust. 

The trail continues to rise for another 100 metres (maximum slope 18%) and the first of the three benches of the trail stands at the top of the hill. After the climb, you descend about 250 metres (slope of 10–14%). When you reach the shores of Lake Puruvesi, the trail continues on level ground for about 100 metres until you reach a picnic site with a table and benches. The table has a height of about one metre and it is also suited for wheelchair users. From the shore, the trail continues uphill for another 200 metres (slope of 5–10%). 
The rest of the trail follows the gently sloped Puistometsäntie road (incline of less than 8%). From the Puistometsäntie road, you can make a side trip of about 70 metres to an old-growth forest. The side trip path is narrower than the rest of the trail (about one metre) and the slope exceeds 8% at places. The path is gravel-surfaced and slightly softer than the rest of the trail. 

The cross slope is not significant and hikers using assistive devices can move without difficulty. However the path may be uneven at places. Weather conditions can temporarily soften the ground making wheelchair use difficult. 

Notes
Cycling is permitted on the trail and thus you may also meet hikers moving on two wheels. A trail section of about 400 metres runs on the Puistometsäntie road, on which car traffic is allowed (the speed limit is 30 km/h). 

Hakin helpompi 1.4 km, demanding accessible circle trail 

Demanding accessible trail symbol.
Demanding accessible nature trail. 
During snow-free season. No winter maintenance. 
The hike takes between 60 and 70 minutes, depending on your functional capacity, assistive devices used and whether you are accompanied by an assistant. 

Enjoy the relaxed atmosphere of a coniferous forest and the breezes of Lake Puruvesi glittering between the trees. The section following the Puistometsäntie road is surrounded on both sides by impressive larch trees, which are more than 100 years old. A picnic at the Karjalankallio lean-to shelter crowns the hike. 

Starting point
Address: Karjalankallio parking area, Puistometsäntie 279, Savonlinna. 
The Karjalankallio parking area is located on a gentle slope, and it is paved with stone dust. There are two accessible parking spaces in the parking area. 
Coordinates: WGS84 - lat: 61° 48.959' lon: 29° 19.671', ETRS-TM35FIN - P: 6855879 I: 622643 

Hiking structures

  • The Karjalankallio lean-to shelter has a covered campfire site, which is also accessible for wheelchair users. 
  • The dry toilet at Karjalankallio is accessible via a ramp (slope 4%) and the doorway is one metre wide. There is no empty space on either side of the toilet seat, but the toilet has support rails and sufficient longitudinal clearance so that you can use it independently or assisted. There may not be enough space for a wheelchair to turn around inside the toilet. 
  • The Karjalankallio firewood shelter is not accessible, as there is a threshold. 
  • There are three benches along the trail. 

Trail description
Trail markings: pink spots in wooden signs. 
Recommended direction: anticlockwise 

Because of height differences, the trail is classified as a demanding accessible trail. Some of the climbs and descents have a slope of more than 8% and there is a small number of long uphill sections on the trail. An assistant is recommended for wheelchair users. Using the cam wheel makes it easier to move forward in a wheelchair. 

The trail is 2–3 metres wide throughout. The path is paved with stone dust and mostly runs on a hard surface. 

The trail begins at the Karjalankallio parking area and starts with an uphill section of about 150 metres (slope of 8–14%). Turn left at the junction. When approaching the shores of Lake Puruvesi, you descend about 300 metres (maximum slope 20%). In this section, maximum cross slope is 6% (over a distance of about 100 metres). At the beginning of the descent, the Karjalankallio lean-to shelter is on your right side. The path to the lean-to shelter is 40 metres long, has a width of 1.2 metres and is paved with stone dust. At first, the trail section along the shore (about 400 metres) is slightly uneven and soft and has a climb of about 300 metres (slope of 8–10 %). 

Turn left at the junction, and after a fairly steep climb of 40 metres (slope 12–15%) you reach a level section running along the Puistometsäntie road for about 500 metres. The last climb of the trail (length about 50 metres, slope 12–15%) takes you back to the Karjalankallio parking area, the starting point of the trail. 
Weather conditions can temporarily soften the ground making wheelchair use difficult. 

Notes
Cycling is permitted on the trail, which means that you may also meet hikers moving on two wheels. About 400 metres of the trail runs on the gravel surfaced Puistometsäntie road, on which car traffic is allowed (the speed limit is 30 km/h).

Topeliuksen polku Trail, 2.2 km / one way, demanding accessible nature trail

Demanding accessible trail symbol.

Demanding accessible nature trail. 
During snow-free season. No winter maintenance. 
The hike takes between 2-3 hours, depending on your functional capacity, the assistive devices used and whether you are accompanied by an assistant.

The Topeliuksen polku Trail passes through the gently rolling national landscape of Punkaharju, among its magnificent eskers and shorelines. Since the 19th century, artists have admired its national romantic views characterised by Scots pines (Pinus sylvestris ‘Fastigiata’) and lakes. The trail is also suitable for accessible hiking and cycling. 


Starting point

Route visitors return along the same path. The starting points are on the Tuunaansalmi cycle path and by the Vaahersalo bridge, on the edge of the Hotel Kruunupuisto terraced house plot. The recommended starting point for those using wheelchairs or other aids is at the end of Tuunaansalmi strait. 

Starting point on the Tuunaansalmi cycle path:
Coordinates: WGS84 - lat: 61° 48.221' lon: 29° 18.211', ETRS-TM35FIN - P: 6854461 I: 621410. 
Nearest address and parking area: Parking area in the northern part of the Harjutie road, Harjutie 597, Savonlinna (road no. 4792). There are no separately marked accessible parking spaces in the parking area.  
The distance from the parking area to the starting point of the trail is approximately 350 metres. Go along the Harjutie road for about 100 metres towards road no. 14 and then turn left to the Laivalaiturintie street just before the T-junction. The Laivalaiturintie street curves to the left, and the Topeliuksen polku Trail starts at the junction about 250 metres away.

Starting point near Hotel Kruunupuisto:
Coordinates: WGS84 - lat: 61° 47.297' lon: 29° 183985', ETRS-TM35FIN - P: 6852754 I: 621635.  
Nearest address and parking area: Hotel Kruunupuisto, Vaahersalontie 44, Savonlinna. From the parking area marked on the map, you can access a trail that joins the Topeliuksen polku Trail by crossing the road. The trail leads downhill by the hotel, towards the shore and ultimately goes under the Vaahersalontie road. From the parking area, you can also select a trail on the Takaharju esker, which will join the Topelius Trail later. These trails are not accessible and there are stairs along the Takaharju trail.  
 
The Topeliuksen polku Trail Map (excursionmap.fi)


Hiking structures

  • There are five benches for resting along the trail. There is room for a wheelchair next to the first of these benches (500 metres from the Tuunaansalmi starting point). 
  • The trail is lit, making it easy to follow even in the dark. The lamp posts are evenly spaced along the route (approximately every 50 metres). 


Trail description

Trail markings: Wooden signposts with the text “Topeliuksen polku” or a white arrow. Most of the trail is also part of the Harjureitistö trail system, and this section of the trail also has painted orange trail markers on trees.  
Recommended direction: Route visitors return along the same path. We recommend those using a wheelchair or other aids to start the trail from the starting point on the Tuunaansalmi cycle path, at the northern end.

Because of elevation differences, the trail is classified as a demanding accessible trail. The maximum longitudinal slope is 27% and the maximum lateral slope is 10%. There are several uphill and downhill sections along the trail. 

The width of the trail varies between three metres and 120 cm. The trail is hard surfaced, but the surface material varies as the trail runs along an asphalt roadbed or gravel road and in places along a narrower route that has been reinforced with rock dust.  

When leaving from the Tuunaansalmi strait, you travel the first 500 metres along an asphalt road and then on a gravel-based road. The trail has several climbs around 30 to 70 metres long and one longer descend. The variation in longitudinal slope is 8–16% and the lateral slope in the descending section is 10%.   
When the trail turns to the left in the direction indicated by a wooden arrow sign after 500 metres, you arrive on a 100 cm to 120 cm wide section paved with stone dust that is around one kilometre long and dips close to the shore of the Kaarnalahti bay. This section of the trail may have short (a few metres long) sections that have a considerable lateral slope due to the erosion of the trail. In these cases, the trail slopes towards the lake. At around halfway, the trail crosses a stream via a flat and short wooden bridge. The bridge has handrails. After the bridge, there is a steep climb (maximum longitudinal slope 27%) and due to a bend, the visibility on the hill is poor. 

After passing a narrow strait, the route becomes gravel-based again. Continue forward for just over 600 metres. There are some roots and unevenness on the road, but it is possible to circumvent them as the width of the road is about three metres.  The section along the road – and the Topeliuksen polku Trail – ends at the Kruunupuisto terraced houses. You can go around the boom at the end point and continue toward Hotel Kruunupuisto. However, this part of the route is narrow and uneven in places, and there is a long, steep climb to Kruunupuisto. This route is not accessible.


Notes

You must watch out for other traffic on the trail. Visibility is sometimes poor in places where you might encounter cyclists moving at high speeds. There is also occasional car traffic at the beginning of the trail. The trail is regularly treaded flat during the snowy season, but there is no official winter maintenance.
 

Other trails

The Kuikon Salpa Trail, 0.7 km, circle trail

Hiking time 0.5 hours. No winter maintenance.
Easy trail, with minor variations in elevation.

Wars and border conflicts are also part of the history of Punkaharju. On the Kuikon Salpa Trail, you can explore the military trenches built during the period of peace between the Finnish Winter War and Continuation War. These trenches were later restored. The structures are part of the Salpa Line, which was built along the entire eastern border of Finland.

Starting point
Address: Kuikonniemi parking area, Harjutie 223, Savonlinna (road no. 4792)
Coordinates: WGS84 - lat: 61° 46.573' lon: 29° 20.200', ETRS-TM35FIN - P: 6851466 I: 623264
The Kuikon Salpa Trail Map (excursionmap.fi)

Sights
Along the trail there is a reconstructed military trench, which visitors may also visit.

Hiking structures
At the starting point there are information boards, which contain a map of the area and information on the role that the Salpa Line played during the Second World War. 

Services 
In the summer, the Harjutie kiosk serves visitors next to the parking area, and the toilet is open during the opening hours of the kiosk. 

Trail description
Trail markings: Orange paint trail markings on trees. Wooden signposts at intersections.
Recommended direction: Can be hiked in both directions.

The Kuikon Salpa Trail is an easy and short circle trail, which starts at the Kuikonniemi parking area. 
The trail winds through a light-filled pine forest. You can find its main attraction, the reconstructed trenches, next to the Harjutie road. Visitors are welcome to explore the trenches. The trenches have been restored in the 1990s and most recently in 2021. In some places, you can admire the sparkling waters of Puruvesi through the trees. 

Notes
Stay on the route while visiting the trenches and observe the instructions posted there. Do not cross ropes bordering the area. Wooden structures may be slippery, such as during rainy weather.  

Kokonharju Trail, 3 km, circle trail

Hiking time 1 to 2 hours. No winter maintenance.
The route is classified as moderate due to differences in elevation.

The Kokonharju Trail will take you into the depths of an old-growth forest. In this rugged esker terrain, you can almost sense the retreat of the continental ice sheet and surging glacial rivers, whose sheer power shaped the landscape. On this trail you will also encounter Finland's tallest tree, which grows in a spruce stand planted in the 19th century.

Starting point

Address: Research Park parking area, Puistometsäntie 14, Savonlinna
Coordinates: WGS84 - lat: 61° 48.274' lon: 29° 18.982', ETRS-TM35FIN - P: 6854583 I: 622082

Kokonharju Trail Map (excursionmap.fi)

Hiking structures
At the starting point of the trail there are information boards, which describe the Punkaharju nature reserve and forest research conducted in the Research Park. The information boards also contain a map of the area. At the approximately halfway point of the trail, there is a low observation bench on top of the Kokonharju esker, where you can take a lunch break. 

Trail description
Trail markings: Orange paint trail markings on trees. Wooden signposts at intersections.
Recommended direction: Can be hiked in both directions.

The Kokonharju Trail is a circle trail, whose starting point is at the parking area next to the Punkaharju Research Park. The first 400 metres of the trail in the Research Park area are hiked on duckboards. The circle trail section of the trail begins at the edge of the nature reserve. 

The narrow trail winds through the old-growth forest area, where the esker forest has remained in a relatively pristine state. While the landscape value of the nature reserve in the Punkaharju esker area has been preserved with the cautious thinning of trees, the forest in the Kokonharju area has been left alone to grow naturally. For example, fallen trees are not removed, but are left on the ground to further increase biodiversity. Glimpses of the sparkling Puruvesi can be caught between the stout pines, and the trail occasionally descends into lush hollows. At approximately the halfway point, there is a small rest bench for a lunch break. There are wide variations in elevation along the trail, with wooden steps built at the steepest point to ease access.

When returning to the Research Park, the trail passes through an impressive planted stand of European spruce (Larix decidua), which was planted in the 1880s. Among other things, the tallest tree in the country grows here, reaching a height of more than 47 metres. You can take a detour off the main trail to reach the tree - look for the sign reading “Suuret puut” (Large trees).
The last 400 metres of the trail returns to the parking area on the same section of trail as at the beginning.

Notes
The rocks and roots in the trail and the wooden stairs may be slippery when wet. 

The Harjureitti Trail, 4 km

Hiking time 1 to 2 hours. No winter maintenance.
The trail is easy to hike, but it is classified as moderate due to variations in elevation.

On the Harjureitti Trail, you will be hiking in the national landscape of Punkaharju, with its rich cultural history. You can take a break from hiking and stop at a café or museum. 

Starting point
There are multiple starting points on the trail. For example, you can start out near Lusto or Hotel Kruunupuisto.

Address: Finnish Forest Museum Lusto, Lustontie 1, Punkaharju
Coordinates: WGS84 - lat: 61° 48.027' lon: 29° 19.265', ETRS-TM35FIN - P: 6854135 I: 622347 

Address: Hotel Kruunupuisto, Vaahersalontie 44, Punkaharju. Please note that the starting point of the trail is located in the parking area across the road.
Coordinates: WGS84 - lat: 61° 47.172' lon: 29° 18.675', ETRS-TM35FIN - P: 6852528 I: 621887

The Harjureitti Trail Map (excursionmap.fi)

  • Topeliuksen polku Trail (2,5 km) is part of Harjureitti Trail. The lit trail is surrounded by old pines and lake landscapes.

Sights and hiking structures
The starting point at the Kruunupuisto parking area has a large information board with a map of the area. Valkialampi observation point with wooden benches. Elsewhere along the trail, there are also benches for resting as well as information boards that present the history of the esker area.

Trail description
Trail markings: Orange paint trail markings on trees. Wooden signposts at intersections.
Recommended direction: The trail can be hiked in both directions, but it is not a circle trail.

The Harjureitti Trail brings together Punkaharju's best trails as well as traditional tourist destinations and newer offerings. In spite of the trail markings, it is a good idea to follow the map while hiking the trail, as there are a large number of other trails crossing through the area. 

The trail is easy to hike, but elevations in esker terrain can vary widely in some places. Stone steps make it easier to access the steepest sections. Part of the trail follows along the Topeliuksenpolku Trail. This part of the trail is also suitable for use by visitors with prams or in wheelchairs with an assistant.

The trail runs one way, but it is possible to change direction by, for example, connecting to the Topelius Trail. The approximately 500-metre section south of Hotel Punkaharju also offers hikers an opportunity to choose whether to follow along the shoreline of Kaarnalahti or take the original, unpaved esker road on the esker. 
The trail can be started at several points, such as near Hotel Kruunupuisto and Lusto as well as, for example, Hotel Punkaharju. 

Notes
Although there is no actual winter maintenance on the trail, all the trail sections are usually trampled smooth in winter. The trail crosses Harjutie road, which has a speed limit of 50 km/h. 

Puulajireitti Tree Species Trail, 5.3 km circle trail

Travel time: 1.5-2 hours. Open year round. 
Easy trail with very small changes in elevation. 

The Tree Species Trail familiarises visitors with dozens of tree species and forest research carried out in the area. Located just a short distance from the trail, the Karjalankallio lean-to shelter offers magnificent scenery for a meal break.  

Starting Point 
Address: Research Park (Tutkimuspuisto) parking area, Puistometsäntie 1, Savonlinna  
Coordinates: WGS84 - lat: 61° 48.274' lon: 29° 18.982', ETRS-TM35FIN - P: 6854583 I: 622082 
Puulajireitti Tree Species Trail Map (excursionmap.fi)

Services and Hiking Structures 
At the starting point of the trail, the Kokonharju parking area has information boards describing the Punkaharju area and the history and present day of forest research in the Research Park.. The information boards also contain a map of the area. The Karjalankallio lean-to shelter and its campfire sites are located at approximately the halfway point of the trail (approximately 200 metre detour from the Puulajireitti Tree Species Trail). The lean-to shelter also has a dry toilet and woodshed. The toilet is accessible for a wheelchair user with an assistant. 

Route Description 
Trail markings: Red paint markings on trees. Wooden signposts, which either read "Puulajireitti" or show a white arrow, at trail junctions. 
Recommended direction of travel: No recommended direction of travel. 

The trail starts at the Research Park parking area. When hiking in a clockwise direction, the trail first passes through the arboretum, which is approximately 200 metres away. The arboretum comprehensively presents the entire range of different tree species in the Research Park. Visitors should take short detours off of the main trail on the smaller side trails in the arboretum. 

The entire Puulajireitti Tree Species Trail follows the gravel roads of Punkaharju Research Park and presents dozens of different tree species to visitors. A wide range of forest research is conducted in the Research Park area, and there are also observation sites along the trail that present the themes of the research. Approximately halfway along the trail, you can take a detour (approximately 200 metres) to the Karjalankallio lean-to shelter for a meal break.  

Please Note 
Part of the trail runs along the Research Park's gravel roads, on which driving is also permitted. The speed limit is 30 km/h.

The Hakinkierros Trail, 7.7 km, circle trail

Hiking time 2 to 3 hours. No winter maintenance.
The trail is easy to walk, with only minor variations in elevation.

On the Hakinkierros Trail, you will be hiking in a forest landscape of larch and other uncommon trees. This area has already served as a forest research showcase for over a century. Lucky hikers might catch a glimpse of the Spotted Nutcracker, the emblem bird of the trail.

Starting point
Address: Research Park parking area, Puistometsäntie 14, Savonlinna 
Coordinates: WGS84 - lat: 61° 48.274' lon: 29° 18.982', ETRS-TM35FIN - P: 6854583 I: 622082
The Hakki Trail Map (excursionmap.fi)

Hiking structures
At the starting point, the Research Park parking area has large information boards that present not only the Punkaharju Nature Reserve, but also the history and present day of forest research in the Research Park. The information boards also contain a map of the area. The Karjalankallio lean-to shelter and its campfire site is located approximately at the halfway point of the trail. There is also a woodshed and dry toilet at the lean-to shelter. The toilet is accessible with the help of an assistant.

Trail description
Trail markings: Blue paint markings on trees. At crossing points, wooden signposts, which either read "Hakin kierros" or show a white arrow.
Recommended direction: The recommended hiking direction on the trail is clockwise.

The Hakinkierros Trail winds through the Research Park area, changing between trails, gravel roads and ski tracks. The first 400 metres of the trail pass through the Punkaharju Research Park's arboretum. The trail then comes to a young pine stand. Trees grow imperceptibly, soon lining both sides of the trail with stunningly beautiful, tall larches. The tallest tree in Finland, over 47 metres tall, also grows here, and you can take a short detour off the trail to see it. The stand was planted more than 140 years ago and was the first example of the experimental cultivation of exotic tree species in the area. 

There are several test areas and stands along the trail. Along the route, you can see several tree species not typical to Finland, such as Swiss pine (Pinus cembra). At approximately the halfway point of the trail, you can stop at the Karjalankallio lean-to shelter to, for example, make a campfire and enjoy the views of Puruvesi. 
The trail is also ideal for mountain biking and serves as a ski track in the winter.

Notes
Part of the trail runs along the Research Park's gravel roads, on which driving is also permitted. The speed limit is 30 km/h. 

Cross-country Skiing Trails

The Länsi-Punkaharju (western Punkaharju) village association maintains a 7,5-km-long circular ski trail known as Metlan lenkki Trail in Laukansaari area as well as several other ski trails (harjureitit.net, in Finnish) in the Punkaharju area. Karjalankallio lean-to shelter, where visitors can enjoy a packed meal beside a campfire, is situated on Metlan lenkki ski trail. The trail is suited for either classical or free-style cross-country skiing.

Metlan Lenkki Trail Map (excursionmap.fi)

Biking Trails

Biking is permitted only on the area's roads and Topeliuksen polku Nature Trail, the Hakki (Nutcracker) Trail and Puulajireitti (Tree Species Trail), as well as on the Lusto-Harjutie section via Pususilta.