Storholmen Wood-Fired Sauna

Storholmen rents its wood-fired island sauna for private two-hour sessions and offers summer drop-in use. The sauna has changing space, two showers and a coastal view; visitors can cool off in the sea. The operator says the island season runs from 15 May to 15 September, and guests arrive by boat or water taxi from Alnö.

Seasonal: 15 May–15 September; contact operator for access code