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The Saltwater Sauna
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authentic Finnish wood-fired sauna


Relax and enjoy the 'löyly' and reap the benefits of nature and heat, as you recharge in an authentic Finnish, wood-fired sauna.


Located on Sandbanks Beach, our sauna seats up to 8 people, with stunning views to the sea through a panoramic window. The sauna includes a small built-in changing area, and boasts warm LED downlighting, welsh grown Douglas fir floorboards, quality ventilation, and British sheep's wool insulation.

Join us for golden sunsets and sunrises, crisp autumn and winter mornings, moody skies, and stormy weather-fronts, all from the comfort of our luxury beach-side sauna.

The Saltwater Sauna


The sauna is bookable for private and communal experiences, all including time for changing. Our 65 / 90 / 120-minute private experiences accommodate groups of up to 8 people, and our 65-minute communal saunas up to 6 people. Our 35-minute private sauna is capped at 5 people to allow ample time for changing before and after the experience, as well time to fully relax in the sauna.

For an authentic Finnish experience, customers can manage the 'löyly' (the steam that rises from the sauna stove), allowing control of heat and intensity. To gain the full benefits of contrast therapy, spend 5-15 minutes in the sauna, before dipping in the sea or enjoying a chilly beach-side shower - and repeat.


For information on what to bring to your session, our cancellation policy, health & safety considerations and more, please see our FAQs.


A steamy vessel of escapism and a place to reconnect your mind and body. Sauna has the ability to improve sleep quality, exercise performance and muscle recovery, as well as cardiovascular and brain health, moisture barrier properties of the skin, and detoxification and fat loss.


Regular sauna use is considered to reduce stress and anxiety, stroke risk, chronic pain and fatigue, and protect against dementia and Alzheimer’s, as well as respiratory diseases and pneumonia.


The minimum threshold for "significant" health benefits using heat exposure & cold immersion has been found to be 57 minutes of heat & 11 minutes of cold per week, ideally alternating between the two and divided over 2-3 days.

The Saltwater Sauna
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Offsetting the wood used to fire up the sauna.

The Saltwater Sauna Director (Arlene)


I'm Arlene, a sauna and cold water enthusiast, artist & surfer, and the person behind The Saltwater Sauna. Born and raised in Finland, with a ratio of 5.5M people to 3.2M saunas, it’s no surprise my passion for saunas crossed the ocean and landed here in Dorset!⁠


In Finland, sauna life is simple; it’s what brings people together as the cornerstone of our weekly routines. Once you step into the sauna, you’re immersed in a blissful state of peacefulness and calm, and leave feeling revitalised.


Saunas are magical to me, and I want people to experience authentic sauna culture and to have even more reason to enjoy our beautiful coastline, all year round. There's simply nothing better than a stormy day and a cosy sauna, fire rippling in the background and rain patter on the rooftop.

Handcrafted by Heartwood Saunas
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