The Archipelago Foundation's sauna on Ostholmen is open to the public. The sauna can not be pre-booked through the supervisor. The fee is paid with Swish.

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Sauna on Ostholmen

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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.