- Wilderness hut
The hut is located along the Martimoaapa hiking trail, around 4 km to the west of Koivuselkä Wilderness Hut.
Saunasaari's wilderness hut built in the 21st century and has beds for 4. Hut has stove also. In the vicinity of the hut there is no actual water abstraction point but the water should be taken from surface waters. There is a maintained campfire site and dry toilet at the wilderness hut.
Next to the Saunasaari wilderness hut there is a logging hut's sauna built in 1947. The logging hut's sauna dates back to time when there ware a logger-cabin accomodated 24 men in Saunasaari. In the logger-cabin, in addition to the sleeping levels, there was a kitchen and a drying room.