sauna and natural water bathing · Lonna Island, Helsinki, Finland
Lonna Sauna
Bathhouse bathing is the programme: heat, cold, rest and company in one place, and people come to stay
Wooden sauna on an island in the Helsinki archipelago: two single-use wood-fired stoves, mixed two-hour sessions and a rocky path down to the sea for the cold plunge.
The full record, with the available operating, price and research data, is free for Bathhouse subscribers.
Venue information
- Address
- Lonna Island, 00160 Helsinki
- Neighbourhood
- Lonna Island
- City
- Helsinki, Finland
- Status
- Open
- Access
- Booked session
Features
- Type
- Public bathSauna club
- Heat
- Wood-fired saunaFinnish sauna
- Cold
- Natural water
- Setting
- Beach
- Access
- Booked session
- Social model
- Mixed
- Amenities
- Restaurant / bar
How it works
Operator publishes a mixed sauna with two single-use wood-fired stoves, two-hour shifts Tuesday to Saturday and compulsory booking.
Two-hour session by booking.
Frequently asked questions
Where is Lonna Sauna?
Lonna Sauna is at Lonna Island, 00160 Helsinki, in Helsinki, Finland.
What does Lonna Sauna have?
The published features include wood-fired sauna, finnish sauna, natural water and restaurant / bar.
How does access to Lonna Sauna work?
The published access models include booked session. Check the current schedule and conditions on the official site before visiting.
Is Lonna Sauna open?
The status recorded by Bathhouse is: Open. The research was updated on 2026-09-01; confirm recent changes with the operator directly.
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The map lines this space belongs to, each with an index of its own.
About this research
Desk research updated on 2026-09-01; anything the operator has not published stays open. Bathhouse separates what the operator publishes from what was measured on a visit, and leaves unverified fields empty.