The Archipelago Foundation's sauna open to the public. The fee is paid with Swish.&nbsp;The sauna is open October through (2025).

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The Archipelago Foundation's sauna at Österviken

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Explore Archipelago is your guide to the vast archipelago landscape between Sweden and Finland. This service was developed as part of the Archipelago Access project, which received funding from the Interreg Central Baltic Programme. It is managed by the City of Turku in partnership with the Stockholm Archipelago Foundation.