Suncube sauna und Whirlpool im Baumhaushotel

Wellness in the tree house hotel on the Baltic Sea - Wonderfully relaxed

Finnish outdoor sauna Hot tub with a view of the fields Quiet terrace with a view of nature Can be used all year round

Immerse yourself in a world of peace and relaxation. Our Baltic Sea Baumhaus SPA combines Scandinavian design with the power of nature - for a unique wellness experience on the Baltic Sea.

Sauna. Whirlpool. Silence.
Enjoy the soothing warmth of our Finnish Suncube sauna with panoramic views of the rolling hills of Eastern Holstein. Or relax in the Hotcube whirlpool in the open air - surrounded by trees and meadows.

Finnish outdoor sauna with up to 100 °C dry heat
HUUM 9 kW electric heater - controllable directly on site
Hotcube whirlpool made from grey wood & alabaster acrylic
Relaxation area on the terrace with a view of nature
Can be used all year round - daily from 9 am to 9 pm

Whether at sunset or under the starry sky - here you will find your retreat surrounded by greenery. Our wellness area is exclusively available to our guests and can be reserved for private use, subject to capacity.

The minimum age for using the spa is 16 years.

Discover more offers for your time out:

Baumhaus SPA - Wellness at a glance

You can enjoy our Baumhaus SPA in the Baumhaushotel at any time during your stay with us.

The Baumhaus SPA is open daily between 9 am and 9 pm. Bathrobes and SPA shoes are available for your use.

The hot tub will follow in autumn 2025 and the sauna will be available from mid-July.

Contact us Do you have any questions?

Do you need help with your booking or do you have questions about travelling or your stay? Our team is here for you!

T04382 / 356 Einfo@ostsee-baumhaus.de

We answer frequently asked questions in our FAQ.

Frequently asked questions

- Wellness experience in the Baltic Sea tree house hotel

Relaxation begins when you don't have to do anything.
Our natural wellness zone combines Scandinavian design with deep tranquillity.
In the middle of greenery. Reduced to the essentials. Made for you.

Natural. Peaceful. Relaxing.

Whether after a bike tour, a walk on the beach or simply to take a deep breath - here you will find your space for relaxation:

Finnish outdoor sauna - with glass front and 100 °C dry heat
Hotcube whirlpool - warm water, wide view, all yours
Relaxation terrace - with a view of the greenery and space for silence

Wellness for tree house guests only

Our spa is reserved exclusively for our guests.

Sustainable comfort

For us, luxury doesn't mean "more", it means "better".
Our sauna and whirlpool have been deliberately embedded in the landscape - with a view, with space, with effect.

Whirlpool with energy-efficient heating
Sauna made of natural materials, clearly designed
Bathrobes & spa shoes included - a matter of course with us

Wellness meets glamping

Design, nature and genuine tranquillity:
Experience our tree house hotel as a quiet luxury - with everything you need. And nothing to disturb you.

The perfect place for body & mind

Pure relaxation - you can feel how nature brings you to rest
Romance for two - share special moments in the warm water
Digital detox - simply be offline, consciously in the now

Wellness holiday on the Baltic Sea - naturally active

The Baltic Sea coast is just a few kilometres away - ideal for balancing movement and tranquillity:

Walks by the sea
Cycle tours through Holstein Switzerland
Excursions to Grömitz, Fehmarn or Heiligenhafen
Combine our wellness offer with a YOGA session or forest and nature bathing

Discover suitable experiences & accommodation

👉 S pend the night in a tree house - nature, comfort & design
🛏️ Tree house lodges - stylish retreats with a feel-good factor
🛁 Treehouse suites - with sauna, whirlpool & maximum privacy
💑 Time for two - romantic time out in a tree house
🛖 Tiny houses on the Baltic Sea - minimalist, close to nature & independent
🐶 Tree house hotel with dog - relaxed holidays with four-legged friends
❄️ Nature in winter - your retreat in the quiet season
🧺 Breakfast & picnic basket - indulgence for your time out
Luxury and nature - the nature area around the tree house hotel
The glamping resort on the Baltic Sea

Spend the night in a tree house - Our Baltic Sea tree houses

High up, at treetop level, you will find a new temporary home. Our tree houses are more than just accommodation - they are quiet observers of the forest, warm retreats with views into the distance and places full of peace and magic.
Scandinavian in design, cosy at heart - here you sleep above things and wake up to the sounds of nature.

Built with high-quality materials, sustainably designed and lovingly furnished, our tree house suites & lodges invite you to simply let go.

An overnight stay in a tree house is an experience that will stay with you for a long time - for all those who long for authenticity and nature.