Isojärvi National Park is an old logging site with a range of activities on offer from hiking and canoeing to just admiring breathtaking views.
Parts of the park are closed to the public during certain times of the year. Please respect the signs!
Walk on Marked Trails
The park is a very popular hiking destination: There are around 30 kilometres of marked trails that form circular routes of varying lengths (4.5–11 km). There are also two nature trails in the park. Heretty Nature Trail (3.5 km) teaches you about the history of logging and forest ecosystems. Lortikka Nature Trail (3 km) introduces you to the area's geology and topography. The route from Heretty to Kannuslahti campfire site (500 m) is also suitable for baby buggies.
The park's trails also lend themselves well to longer hiking excursions with overnight stays. You can bring your own tent, or spend the night in a lean-to shelter or Lortikka cabin, which is hired out to groups in the summer.
Canoeing and Rowing
Lake Isojärvi is 20 kilometres long and as narrow as a fjord in places – ideal for canoeing! The best place to set off is by the car park at Nokipohja, northwest of Huhtala Croft. There are also two rowing boats in Kalalahti bay, which can be hired from the Heretty summer cafe.
Sights and Scenery
Heretty cabin was built in 1946–1947 as a base for forestry workers. The cabin and its outbuildings have remained unchanged through the years. There is a cafe and rental rooms in summertime in Heretty and there is also a fascinating photographic exhibition about forestry in the cabin.
Huhtala Croft dates back to the late 18th and early 19th centuries, and its log buildings are among the best examples of this generation of buildings in the country. Read more
The rocky shores of Lake Isojärvi offer breathtaking views far into the horizon. Also worth seeing are the deep ravines carved into the terrain by fault lines in the earth's crust as well as an old fisherman's cabin on Luutsaari Island.
- Geocaching: See your surroundings in a new light! Geocaching brings an element of adventure to a hike in the woods.
- Skiing: There are no restrictions on skiing in the park, although there are no maintained ski trails. The park's hilly terrain, frozen lakes and narrow isthmuses provide skiers with plenty of variation and physical challenges. Watch out for thin ice!
- Snowshoeing: Snowshoeing is a great way to explore the park's hilly terrain in the winter.
- Pick Berries and Mushrooms: Berry and mushroom picking is allowed throughout the park with the exception of the restricted areas of Lortikanvuori hill and the woods of Latokuusikko. Some of the islands of Lake Isojärvi are off limits during the bird breeding season from 1 May to 31 July. Read more
- Learn in Nature: The park is a great destination for school groups. Its nature trails, the old loggers' cabins of Heretty and Lortikka and Huhtala Croft make for inspiring learning environments.
- Mountain biking: There are numerous forest roads suitable for cycling in the park. According to the rules of conduct mountain biking is also allowed along the path between Heretty cabin and Lortikka cabin (the 4.5-km path has been used for cycling since the 1950s) and the path between Lortikka and Kalalahti bay (3 km).
- Swimming: There is no official beach, but there are many places that are suitable for swimming in the park.
- Voluntary Work: Would you like to try your hand at sheep herding, hay making or tree cutting? There are many fun ways to contribute to the park's maintenance.