Sickla Bastun is a self-service sauna site at Sickla strand in Nacka, behind the tennis courts, run by Smashing Balance, the SUP-yoga operator beside Elton's Café. It has a small electric sauna and a wood-fired tent sauna, both open daily 08:00–21:30. Drop-in visitors book an hour online for 150 SEK including wood or electricity, paid by Swish after the visit, and heat the sauna themselves, which takes 15 to 20 minutes.