Castle Lake Sauna, Swim & Cold Plunge

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Swim in Nature. Discover Your Calm.

Escape the everyday and immerse yourself in one of Dorset's most beautiful open water swimming locations.

Set within the tranquil surroundings of Dorset Adventure Park, our secluded freshwater lake offers an unforgettable swimming experience. Glide through fresh, spring-fed water, surrounded by ancient woodland, with breathtaking views of historic Corfe Castle rising above the Purbeck Hills.

Whether you're swimming for fitness, dipping for wellbeing or simply taking a moment of peace, this is your place to slow down, breathe deeply and reconnect with nature.

Operated by The Wild Swimming Co., every session is professionally managed and lifeguarded, allowing you to enjoy the freedom of open water swimming in a safe, welcoming environment.


Swim Somewhere Extraordinary

There are few places in Dorset where you can swim in freshwater while looking out towards one of England's most iconic castles.

As the morning mist lifts from the lake and the woodland comes alive with birdsong, discover a peaceful setting that feels a world away from the rush of everyday life.

The calm water, fresh country air and stunning natural surroundings create an experience that nourishes both body and mind.

Throughout the colder months, enjoy the tranquillity of a quieter lake. In summer, swim around the inflatables before the park opens to the public.

Whether you're building your fitness, developing your confidence or simply enjoying the water, there's something special about starting your day here.


Feel Better Naturally

Open water swimming is a wonderful way to combine movement, nature and time for yourself.

There's something uniquely refreshing about immersing yourself in fresh water, breathing in the country air and leaving the everyday behind. A morning swim can become a moment to reset, recharge and start the day feeling refreshed.

Whether you're training for an event, building confidence or simply looking for a new wellbeing ritual, our sessions offer a welcoming space to enjoy the benefits of being outdoors.

And when you're ready to warm up, there's the option to enjoy our lakeside wood-fired sauna.


Swim, Sauna & Slow Down

Your visit doesn't have to end when you leave the water.

Combine your swim with a relaxing session in our wood-fired lakeside sauna, enjoy access to the cold plunge during a private sauna booking, or settle in with a freshly brewed coffee and homemade cake from the Snack Shack.

It's the perfect opportunity to warm up, unwind and catch up with friends.

Choose Your Experience

Lake Swim — £9 per person

Enjoy a refreshing open water swim in our beautiful freshwater lake. Ideal for fitness, wellbeing or simply enjoying some time in nature.

Swim & Sauna — £16 per person

Make your morning extra special with a swim and sauna experience.

  • Lake swimming from 8am to 9:30am

  • Sauna access from 8:30am to 9am

  • A saving compared with booking your swim and sauna separately

Swim at your own pace, then enjoy 30 minutes in the warmth of our wood-fired sauna.

Private Sauna & Cold Plunge — £80 per hour

Enjoy exclusive use of the sauna for a private session, including access to the cold plunge.

  • Private sauna booking from 8am to 9am

  • Exclusive use of the sauna for your booked hour

  • Cold plunge access included

  • Ideal for friends, family or a shared wellness experience

Private sauna guests can also book lake swimming for £9 per person.

Please note: private sauna bookings and the Swim & Sauna package have different sauna times. Choose the option that best suits your visit.


Swim With Confidence

Every session is delivered by The Wild Swimming Co.'s experienced team and includes:

  • Qualified open water lifeguards

  • Professionally managed safety cover

  • Online booking and friendly reception

  • A welcoming environment for experienced swimmers and beginners alike

Coaching, technique sessions and beginner courses are planned for the future, alongside new ways to enjoy the lake throughout the year.


Become Part of the Community

Our vision is to create much more than a place to swim.

We're building a welcoming community where people come together to enjoy the outdoors, challenge themselves, improve their wellbeing and support one another throughout every season.

As our community grows, look forward to:

  • Sunrise swims

  • Full Moon swims

  • Winter wellness sessions

  • Swim and sauna experiences

  • Technique clinics and beginner courses

  • Social swims and seasonal celebrations

Regular swimming sessions take place every Tuesday and Saturday morning, with additional swims and special events introduced as our community grows.

Spaces are limited to help us maintain a safe, relaxed and high-quality experience for everyone.

Join us and discover a new way to enjoy Dorset's beautiful outdoors.


Facilities

Our lakeside facilities are designed to help you enjoy your visit, from the moment you arrive until long after your swim.

Swimmers have access to dedicated changing rooms, toilets and, where conditions allow, warm showers to help you rinse off and warm up after your swim. As an outdoor venue, showers are weather dependent and may occasionally be unavailable during freezing temperatures or flooding.

After your swim, take a moment to relax, enjoy the peaceful surroundings and treat yourself to warming tea, coffee and cake from the Snack Shack.


Your Next Adventure Starts Here

Breathe in the woodland air.

Swim beneath the silhouette of Corfe Castle.

Warm yourself beside the sauna.

Leave feeling refreshed, accomplished and more connected to nature.

Book your swim or sauna experience today and discover the magic of open water swimming at Dorset Adventure Park.

Dorset Adventure Park, Corfe Castle BH20 5JG

Tuesday & Saturday mornings 08:00 - 09:30

Swim loops of 160m or dip off our pontoon

Qualified, trained lifeguards

Beginners and swimmers welcome

Book a private sauna, or join a communal session at 8.30am

Changing rooms

Warm, outdoor showers

We'll record your distance

Intro sessions available

Swim 8am-9.30am - £9

Swim 8am-9.30am & Sauna 8.30am-9am £16

Private Sauna 7.30am-8.30am -£80 (add swimmnig £9pp)

Sauna & Cold Plunge 8.30am-9am - £10

Lakeside Sauna (Communal 30 min)

£10.00

Lake Swimming (90 min)

£9.00

Sauna & Swim (30 min)

£16.00

Sauna Private Hire (6 people, 30 mins)

£80.00

Intro to Cold Water Swimming

£19.00

Sauna & Swim (30 min) Block Booking x10

£150.00

Castle Lake FAQ

Is there a wetsuit policy?

We’ll always recommend a wetsuit, they will keep you warmer for longer and you’ll be more buoyant. Wearing a wetsuit may mean that you can enjoy the swim for a little longer than you are used to. However we understand that it’s not for everyone, therefore wetsuits are always optional.

Is there a tow float policy?

Tow floats are encouraged, they make you more visable and give you somthing to hold on to if you lose confidence.

How do you manage safety?

All of our lifeguards are Open Water qualified and are first aid trained, we'll check you in and out of the water and hold your medical information and emergency contact details.

Are there any ability requirements?

Our swims are ideally suited for complete beginners who want to try wild swimming, if you're a little more seasoned, you can complete loops around the lake.

What do I need to bring?

You don’t need to spend hundreds on specialist kit to come on a Wild Swimming, but you might want a tow float (which you can buy when you’re here!), plus a towel or robe and footwear that you can wear in the water. We can talk through all the posh bits and pieces on the market when you’re with us.

Do you track distances, times and temperatures?

We'll record the temperature and your time or distance on your exit, you can then track your progress throughout the year/ season.