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 Finland, 5 of the curated saunas fit this cut. See the full Finland country guide for every venue, or keep scrolling for just the smoke saunas.
