Heated by a wood-burning stove, not an electric heater. Soft, deep heat and the sound of the fire.
Every session is capped at eight, so there is always room on the bench and time to settle.
The cold plunge is always there. Before 10am, a dip in Bray Lake is part of your booking.
Up to fifteen minutes on the wooden benches. Let the stove do the work.
Step out into the cold plunge. Before 10am, the lake is yours too.
Sit by the water for a while and let your heart rate settle.
Go round again, as many times as your session allows.
Bring swimwear, two towels (one to sit on), a water bottle and sliders. There are changing rooms by the bus, more changing and hot showers in the lake’s clubhouse, and a café and toilets on site. Arrive ten minutes early. Over-16s only.
You don’t need to know anything. Sit in the heat for as long as feels good; five minutes is plenty to start. Step out and cool off in the plunge, the lake before 10am, or just the fresh air. Sit by the water for a bit, then go again when you’re ready. There’s no right way to do it.
Come on your own or bring someone. Open sessions are shared, so you’ll be on the bench with up to seven others. Say hello or keep to yourself, either’s fine. There’s always one of us on the bus, so if you’re unsure about anything, just ask.
The sauna usually sits between 70 and 80°C, and can reach 90°C depending on the time of day and the session. Not sure how long to book? An hour gives you time for a few rounds without rushing.
Every booking includes the sauna and the cold plunge. Saturdays and Sundays, 8:30am to 4pm.
Shared with up to seven others. Stay for 30, 60 or 90 minutes.
30 / 60 / 90 min£10 · £18 · £26
BookAny session between 10am and midday, from 7 November. No talking please, respect the calm of the space.
From£10
BookFour to eight of you, an hour together, starting between midday and 3pm. £14 each (usually £18) with code Running for a limited time.
Each£14
BookThe whole bus for up to eight, Saturdays and Sundays from 1:30pm. About £16 each with eight of you.
From, per hour£130
See private hire
Birthdays, teams, old friends, a hen do that doesn’t want a bar. Have the whole bus to yourselves, with the stove lit and the plunge ready.
“Spent a rejuvenating hour here after a swim, soaking up the heat and nature views out the window.”Nathan, Google review
“Top quality sauna – proper, 90 degrees heat – and a cold plunge in a beautiful location. Left feeling on cloud 9.”Sakib, Google review
“Dan and Harrison are incredibly friendly and welcoming, and you can tell how much thought they’ve put into every little detail.”Carine, Google review
“Really lovely intimate setting for a sauna/cold plunge experience. Clean and well managed – would highly recommend a visit.”Jocelyn, Google review
“Knowledgeable, friendly staff who clearly know their stuff”Tom, Google review
“The view from the sauna over the lake is beautiful and a perfect set up for post dip relaxation.”Emily, Google review
“What a treat this little gem is. A lovely space on the edge of Bray lake. They have thought of everything.”Heidi, Google review
“Really good sauna in a converted bus, with beautiful views of the lake. Changing facilities and cold plunge. Very friendly and relaxing.”Kendra, Google review
“The team are so knowledgeable and clearly passionate about what they do.”Sophie, Google review
“Perfect temperature, traditional style sauna – all inside a converted bus! Lush!”Chay, Google review
“After years of using those lukewarm ‘dry’ saunas at the gym, this was a total game-changer.”
Killian, Google review“The sauna is fantastic, super clean and loads of space and they’ve got cold showers or a cold plunge to use along side.”
Jake, Google review“This is exactly what I need after cold water swimming. The heat slowly warms me back up and is deeply relaxing.”
Stephanie, Google review
Hi, I’m Dan. In 2024 I bought an old library bus and turned it into a wood-fired sauna. It spent its first life helping communities, and I wanted its second to do the same.
Now it’s parked on the shore of Bray Lake every weekend, and there’s always one of us on the bus. We clean it at the end of every day: the benches are washed down, and the plunge is emptied, jet-washed and sanitised.
If you’ve got a question, just ask. You’ll get me.
For anyone who’s ever said “I’ve always wanted to try that.” A TEMPA gift card arrives by email the moment you buy it. Any amount, valid for twelve months, good for any session or private hire.
Saturdays & Sundays
8:30am – 4pm
By booking only
Under 10 minutes from Maidenhead, 10 from Windsor and Eton, 15 from Slough. Parking on site.
