2Helsinki · Kalasatama and Hermanni
Sompasauna
LocalNatureRitual
Kalasatama shore
- Entry
- free, by reviews
- Open
- 24 hours
- Google rating
- 4.8 · 1,424
- Dress
- mixed, clothing optional
The verdict
A free, volunteer-run sauna on the shore in Kalasatama, open 24 hours, with the sea a short walk away; it is mixed and clothing optional.
Bring a padlock
Reviews from 2026 count two or three saunas; one guest put them at 60, 80 and 150 degrees, with the sea two minutes' walk away for a dip.
Bring your own padlock for the lockers. Entry is free, and reviewers ask visitors to donate to keep the place running.
Why this one
Sauna Hermanni, 2.33 km north-west, is a public sauna from the 1950s with separate men's and women's sections, €14 entry and a 4.7 from 215 reviews; it ties with Sompasauna on 5.
A tie goes to the spa with more reviews, and Sompasauna has 1,424. It carries our Ritual tag as a public sauna kept by its community.
What guests notice
“As info: no toilets, no showers and no dressing room.”
Camila Escobar, Google review
“As a woman, know that you could end up sitting next to and opposite nude men (nothing wrong with it, just a reality at this sauna).”
fizzlechip, Google review
Skip it if
You want showers, a changing room or a same-sex sauna: the facilities are basic and the saunas are mixed, clothed or not. Kotiharjun Sauna in Kallio, 2.4 km west, has separate men's and women's saunas.
The menu
sompasauna.fi did not load as text when we checked on 7 November 2026; reviews describe entry as free, with donations welcome.
Before you go
Open 24 hours (Google). Bring your own padlock and towel. Kansanpuistonpolku 5, Kalasatama.
Find it
Rating, hours and address from the venue's Google listing, checked 7 November 2026.