London's outdoor saunas are the cheap, community end of the city's scene. They sit in yards, car parks and park corners, and most run a wood fire.
The plunge is nearly always on site, usually a stock tank rather than open water. Sessions are booked by the slot rather than dropped into.
In London, 6 of the curated saunas fit this cut. See the full London guide for every venue, or keep scrolling for just the outdoor saunas.
Every outdoor sauna in London

Community Sauna Baths — Camberwell
£London, United Kingdom
Finnish

Community Sauna Baths — Hackney Wick
£London, United Kingdom
Finnish

Community Sauna Baths — Peckham
£London, United Kingdom
Finnish

Community Sauna Baths — Stratford
£London, United Kingdom
Finnish

Community Sauna Baths — Walthamstow
£London, United Kingdom
Finnish

Lowlu — Wandsworth
£London, United Kingdom
Finnish