London has gone from a city with barely a handful of decent public saunas to one with more than two dozen, and the pace has not slowed. Community sites have spread north and south of the river, a 60-person contrast therapy hall has opened in Canary Wharf, and a rooftop cabin in Hackney now turns up on international travel lists. The trouble for anyone new to it is that “sauna” in London now covers everything from a £9.50 wood-fired cabin in a community garden to a £200 Russian banya ritual. They are not the same experience, and they are not for the same person.
We visited and assessed the venues below against the things that actually matter once you are inside: heat quality and how the löyly (the steam from water on the stones) holds, the cold-water set-up, how busy the sessions get, booking friction, and what you pay. Prices quoted are 2026 rates taken from each venue, and they shift with peak and off-peak slots, so always check the live booking page before you go.
How we ranked them
A genuinely good public sauna does three things well. It gets properly hot and stays that way when the room fills up, which is where cheaper electric cabins often fall down. It pairs that heat with cold water you actually want to get into, whether that is a plunge pool, ice bath or open water. And it manages capacity so you are not standing in a corridor waiting for a bench. We weighted those three above everything else, then factored in price, atmosphere and how easy it is to book a slot.
We have split the list by what you are after, because the best sauna for a cold-water swimmer doing a quick contrast session is not the best one for a group wanting a long, social afternoon.
The best public saunas in London for 2026
1. Community Sauna Baths, best value and best all-rounder
Run as a not-for-profit, Community Sauna Baths is the venue we would send most people to first. The cabins are wood-fired, which gives a softer, more even heat than the electric boxes you find in most gyms, and most sites pair that with cold plunges that are properly cold. There are five sites: Hackney Wick, Stratford, Peckham, Camberwell and Walthamstow, most set in community gardens or repurposed industrial plots, so the atmosphere is relaxed rather than polished. One thing to note: the Peckham site is off-grid and currently runs two wood-fired saunas plus a shower, with no cold plunge, so head to one of the other four if a plunge is the point.
The pricing is the headline. Weekday off-peak hour sessions start at £9.50, peak slots run to £16.50, and concessions for students, NHS staff, Universal Credit recipients and Blue Light Card holders drop to £5 off-peak. The Stratford site also runs free NHS slots in the early morning for eligible workers. For a regular habit rather than a one-off treat, nothing else in London comes close on price for the quality of heat.
- Locations: Hackney Wick, Stratford, Peckham, Camberwell, Walthamstow
- From: £9.50 off-peak, £5 concessions
- Best for: First-timers, regulars, anyone on a budget
2. Arc, Canary Wharf, best for serious contrast therapy
Arc opened in Crossrail Place in January 2025 and is built around a single idea: communal contrast therapy done at scale. Its sauna is billed as the largest in the UK, seating up to 60 people and running to around 88°C, paired with stainless steel ice baths kept at roughly 2 to 5°C with chilled, UV-purified, filtered water. Most sessions are run as guided classes, cycling a whole group between hot and cold with breathwork and sound, though there are free-flow sessions too if you would rather move at your own pace.
That structure is the appeal and the catch. If you want a guided, gym-style recovery session with a crowd and a coach, it is excellent and the facilities are the most serious in the city. If you only ever want to potter between sauna and plunge alone, you will get more out of a smaller venue. Individual classes are £29, a block of ten is £250, and memberships start at £125 for five sessions a month.
- Location: Crossrail Place, Canary Wharf
- From: £29 per class
- Best for: Fitness and recovery users who want a guided session
3. Rooftop Saunas Hackney, best for a private session with a view
Tucked into Netil Corner between Broadway Market and Victoria Park, this is a private-cabin set-up rather than a communal one. You book a contemporary Finnish cabin, with outdoor cold plunge pools held at 5 to 7°C, waterfall buckets and a private cool-down room with drinks on the longer sessions. The views across East London are the thing people remember, National Geographic named the venue one of its top global travel adventures to book in 2026, and it is over-18s only.
Because you are not sharing with strangers, it suits couples, small groups or anyone who finds communal saunas a bit much. Express sessions of 30 minutes start at £11 per person, a 60-minute Sauna Experience is from £16.50, and a 90-minute Extended Experience is from £22, with off-peak weekday mornings cheapest. Note the site is currently foot-access only.
- Location: Netil Corner, Bocking Street, E8
- From: £11 per person
- Best for: Couples and small private groups
4. Sauna Social Club, Peckham, best atmosphere
This one leans into the social side. Founded by a DJ and a personal trainer, the Peckham site has two hot Finnish-style saunas and four ice baths at different temperatures, and the main cabin is fitted with a custom hi-fi rig that survives the heat. On Friday and Saturday nights, and some Sundays, they bring in DJs and live musicians and pipe the sound into the sauna, so it is closer to a listening lounge than a quiet retreat.
If silence and meditation are what you want, look elsewhere. If you want the sauna to feel like a night out with proper cold water attached, it is the most fun on this list. An off-peak Essential session is £14.99, with an unwaged off-peak rate of £9.99 on weekdays, and the peak Social session with lounge access is £24.99.
- Location: Peckham, SE London
- From: £14.99 off-peak
- Best for: Groups, music lovers, social sessions
5. The Finnish Church Sauna, Rotherhithe, best for authenticity
The most genuinely Finnish sauna in London sits inside the Finnish Church on Albion Street in Rotherhithe, and the community has kept a sauna here for decades. It is unfussy, traditional and quiet, with a public slot or a private booking and opening across Wednesday to Sunday. There are no ice baths or DJs, just a proper hot room and a cold shower, the way it is done back home.
It is also one of the cheapest authentic experiences in the city: public sauna is from £12 per person for an hour, private from £25 for two on weekdays. Booking is online only now. For a cold-water swimmer who just wants heat after a swim, or anyone curious about the real tradition behind the trend, it is hard to beat.
- Location: 33 Albion Street, SE16
- From: £12 per person
- Best for: Purists and post-swim recovery
6. Banya No.1, Hoxton, best for a treatment-led day
This is a different category altogether: a Russian banya rather than a Finnish sauna. The signature is parenie, an intense ritual where an attendant works steam over your body with bundles of leafy twigs called veniks before a cold-water dousing. It is a treatment more than a session, and the packages run long.
It is the priciest entry here and best treated as an occasional event. The core Parenie package starts from £95 off-peak and £110 peak, the Silver package with a scrub and mud mask is from £140, and the Gold package adding a 25-minute massage runs from £185 off-peak to £200 peak. Worth it once you know you like the heat, not for a first try.
- Location: 17 Micawber Street, Hoxton, N1
- From: £95 off-peak
- Best for: A full spa day with a traditional ritual
Which one should you pick?
For most people, start at Community Sauna Baths. It gives you the best heat-to-price ratio in London and several locations to choose from. If you are a gym or recovery user who wants structure and the most serious cold-water set-up, go to Arc. For a private session, choose Rooftop Saunas Hackney; for atmosphere, Sauna Social Club; for tradition, the Finnish Church; and for a one-off treatment day, Banya No.1.
The health case for any of them is reasonable rather than miraculous. The widely cited long-term Finnish research led by Dr Jari Laukkanen, summarised by the National Library of Medicine, found regular sauna use was associated with lower cardiovascular and all-cause mortality in middle-aged men, though that is observational data, not proof that sitting in a sauna will add years to your life. Keep sessions sensible, around 15 to 20 minutes at a time, stay hydrated, and cool down gradually. If you have a heart condition or are pregnant, check with a doctor first, and the NHS is a sensible starting point.
If the public sessions convince you and you start thinking about heat at home, our guide to choosing a barrel sauna for a UK garden covers the kit, the running costs and what to look for before you buy.
Frequently asked questions
How much does a public sauna in London cost? It ranges widely. The cheapest decent sessions start at £9.50 an hour at Community Sauna Baths, with £5 concessions, while a guided class at Arc is £29 and a full Russian banya ritual at Banya No.1 starts from £95. For a casual one-hour session, budget £12 to £25.
Do London saunas have cold plunges or ice baths? Most of the newer venues do. Arc has rows of stainless steel ice baths, Sauna Social Club has four at different temperatures, and Rooftop Saunas Hackney holds its plunges at 5 to 7°C. Community Sauna Baths has cold plunges at most of its sites, though the off-grid Peckham location runs cold showers instead. The Finnish Church is traditional, with cold showers rather than a plunge pool.
What is the difference between a Finnish sauna and a Russian banya? A Finnish sauna is a hot, fairly dry room where you pour water on the stones for bursts of steam, and you cool yourself between rounds. A Russian banya runs a more humid heat and centres on parenie, where an attendant uses leafy venik bundles to move steam over your body. Banya is more of a guided treatment, Finnish sauna is more self-paced.
Do I need to book a sauna in advance in London? Yes, for almost all of them. Popular slots at Community Sauna Baths, Arc and Sauna Social Club sell out, especially evenings and weekends, and the Finnish Church takes bookings online only. Weekday mornings are quieter and cheaper if you want to turn up with less planning.
What should I bring to a public sauna? A towel or two, swimwear (most communal venues are mixed and clothed), flip-flops, and a water bottle. Some venues provide towels and robes, but many charge for hire, so check. Leave heavy moisturiser and watches off, and do not go in on a full stomach or after drinking.
Is sauna use actually good for you? There is reasonable evidence that regular sauna use is linked to better cardiovascular health, drawn mainly from long-running Finnish population studies. These are associations rather than guarantees, and the benefits depend on sensible use: short sessions, good hydration and gradual cooling. Anyone with a heart condition, low blood pressure or who is pregnant should speak to a doctor first.