Seaside sauna · 🇫🇮 Helsinki, Finland
Avanto Sauna Uunisaari
Island sauna off Kaivopuisto with the unisex Iso-Uuni sauna and the women's Pikku-Uuni sauna, sea swimming and on-site dining; reached by pontoon bridge in winter or ferry in summer.
Good to know
- Bring a swimsuit – bathing suits are required here.
- Cool off with a swim between rounds.
- There's a restaurant on site, so you can make an afternoon or evening of it.
- Towels can be rented on site if you travel light.
Location
Pohjoinen Uunisaari 2, 00140 Helsinki
Details compiled from the sources below on 2026-10-01. Prices and hours change – please confirm on the official website before visiting. Sources: saunat.fi.