The nature trail, which starts from the Niihama outdoor hut, runs through wooded terrain around lake Niihamajärvi and mount Soukonvuori. The length of the trail is just over 3 kilometers and there are 10 checkpoints along it. Along the route, there’s dry and damp moor forest, birches and coppice.

The Niihama nature trail starts from the Niihamajärvi outdoor hut and leads back to the outdoor hut via Soukonvuori mount.