Finnhamns bastu
Finnhamn, Österåker
On the islands · Sea
See prices on their website
Svartsö, Värmdö · Träskö-Storö, 130 42 Stavsudda
Two public saunas with wood stoves, one small and one big, at Träskö-Storö. Many boats stop in this natural harbour. You do not need to book.
From 50 kr per person
50 kr per adult. Pay with Swish (Swedish payment app). You cannot book. If there is space, you can go in. You can stay one hour.
Open from 30 April to 31 October. Closed when fires are not allowed outdoors (fire ban).
Träskö-Storö, 130 42 Stavsudda
We checked this information on 12 October 2026, on the sauna’s own website. skargardsstiftelsen.se