Smoke saunas (savusauna in Finnish) are the oldest format still in regular use. Fires burn for hours without a chimney, then the smoke clears and the heat that's left is softer and heavier than anything a modern stove puts out. Expect booked sessions, small groups, and a ritual that asks you to slow down rather than perform.
In Helsinki, 3 of the curated saunas fit this cut. See the full Helsinki guide for every venue in the city, or keep scrolling for just the smoke saunas.
