Video: https://www.youtube.com/watch?v=8RGU1BsQ7aA
Description: Pikku-Leikosaari sauna is open year-round, is open to anyone, is free, and self-service. At the sauna, there is just a book / paper where you write you name for a sauna shift. Seawater is not allowed in the heater, so bring fresh water for steam baths. Rainwater barrels provide sauna water, but bring a bottle for spare water. You can camp on the island.
At the location:: WC, Firewood, Sauna
Is it free?: Free
Website: Pikku Leikosaari
Region:: Uusimaa
City:: Helsinki
Neighborhood:: Pikku Leikosaari