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  • Baumhaus SPA
    • Sauna in nature
    • Whirlpool in nature
  • Nature area
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    • Breakfast basket
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Logo Ostsee Baumhaus Hotel (invertiert)

Alte Landstr. 16

23758 Wangels / Ostholstein

T+49 4382 / 356

Einfo@ostsee-baumhaus.de

Visit us on Instagram Ostsee Baumhaus Hotel auf Instagram (öffnet neuen Tab)
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  • Mann im Whirlpool beim Sonnenuntergang im Schnee - Baumhaushotel
  • Baumhaushotel Ostsee - Schottische Hochlandrinder
  • SPA Bereich mit Sauna im Sommer im Baumhaushotel
  • Sauna Besuch in der Natur
  • Blick aus dem Baumhaus Whirlpool
  • Baumhaus SPA Ruhebereich und Whirlpool
  • SPA Area mit Huum Sauna und Aufguss
  • Baumhaushotel Wellness Bereich mit Hotcube Whirlpool
Sauna Besuch in der Natur
Mann im Whirlpool beim Sonnenuntergang im Schnee - Baumhaushotel

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

  • Finnish outdoor sauna
  • Hot tub with a view of the fields
  • Relaxation terrace with a view of nature
  • Use possible all year round

Our wellness area is not a classic spa, but a quiet retreat - minimalist, clear and embedded in nature, perfect for time together, conversation and tranquillity in the tree house hotel.

Our nature spa combines Scandinavian design with the power of the environment - for a consciously decelerated wellness experience on the Baltic Sea. Whether for a break with friends or a quiet time for two: this place creates space for exactly what is often neglected in everyday life - peace, closeness and distance.


Sauna. Whirlpool. Silence.
Enjoy the soothing warmth of our small, Finnish design sauna with a sweeping view of the East Holstein countryside. Or relax in the whirlpool under the open sky - surrounded by trees, meadows and the sound of nature.

The wellness area is deliberately located away from the tree houses and is exclusively available to our overnight guests. It's not about entertainment or programmes, but about peace, retreat and time for each other - at your own pace.

Guest testimonial

"It was three wonderful days full of relaxation. We laughed a lot, talked a lot and simply enjoyed our time together. Sauna, whirlpool and the view of nature - for us it was a real power place."

- Guest review on Google from 12.03.2026

The minimum age for using the SPA is 16 years.

→ More about the sauna at the Baumhaushotel
→ More about the tree house with whirlpool

Discover more offers for your time out:

  • Romantic hotel with sauna

  • Time for two in the tree house

  • Special time-outs

What our guests love most:

"Fantastic accommodation with a difference. The outdoor sauna and whirlpool were the perfect way to relax." - Julia S. (February 2026)

"Super nice tree houses with a great view and a morning visit from the deer right outside the window." - Alias A. (autumn 2025)

Sauna mit Panoramafenster im Ostsee Baumhaushotel
Baumhaushotel Ostsee - Paar im winterlichen Whirlpool
Mann im Whirlpool beim Sonnenuntergang im Schnee - Baumhaushotel
Blick aus dem Baumhaus Whirlpool
Baumhaushotel Ostsee - Whirlpool / Hottub mit Ausblick auf die verschneite Landschaft
Baumhaus SPA mit Whirlpool und Sauna
Baumhaus SPA Ruhebereich und Whirlpool
Baumhaushotel Wellness Bereich mit Hängematte
Hängematte und Sauna
SPA Area mit Hotcube Whirlpool
Baumhaushotel Wellness Bereich mit Hotcube Whirlpool
Baumhaushotel Ostsee - Naturpfad im Winter
Baumhaushotel Ostsee - Schottische Hochlandrinder

Baumhaus SPA - Wellness at a glance

During your stay at the Baumhaushotel, our Baumhaus SPA is open daily from 9 am to 9 pm.
We are happy to provide you with bathrobes and sauna towels for an extra charge.

  • Finnish outdoor sauna in a quiet location

  • Whirlpool under the open sky

  • Relaxation terrace with a view of the countryside

  • Can be used all year round

  • Exclusively for overnight guests

We wish you soothing moments of peace and relaxation - surrounded by nature.

SPA Bereich mit Sauna im Sommer im Baumhaushotel
SPA Area mit Huum Sauna und Aufguss
SPA Area mit Hotcube Whirlpool
Baumhaushotel Wellness Hängematte und Sitzgelegenheiten
Baumhaushotel Wellness Bereich mit Hotcube Whirlpool
Baumhaushotel Wellness Bereich mit Hängematte
Paar in der Sauna

- Wellness experience in the Baltic Sea tree house hotel

Relaxation begins when you don't have to do anything.

Our natural wellness zone is reduced to the essentials: Warmth, tranquillity and time.

In the middle of greenery. Clearly designed. Made for people looking for peace and quiet.

→ More about the sauna at the Baumhaushotel
→ More about the tree house with whirlpool

Wellness for tree house guests only

Our SPA is reserved exclusively for our overnight guests.
No day guests. No hustle and bustle. Consideration and tranquillity are part of our concept.


Sustainable comfort

For us, luxury does not mean "more", but "better".
The sauna and whirlpool were deliberately embedded in the landscape - with a view, with space, with impact.
Clearly designed, built to last and reduced to what is really good for you.


Wellness meets glamping

Design, nature and true tranquillity.
Experience our tree house hotel as a quiet luxury - with everything you need.
And nothing that disturbs you.


The perfect place for body & mind

  • Pure relaxation - nature brings you to rest

  • Romance for two - special moments in warm water

  • Digital detox - consciously offline, completely in the now

  • Girlfriend time-out - relax, talk and enjoy nature together
    A weekend away with friends takes on a special atmosphere here: sauna, hot tub and plenty of time to talk, laugh and relax.


Wellness holiday on the Baltic Sea - naturally active

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

  • Walks by the sea

  • Cycling tours through Holstein Switzerland

  • Excursions to Grömitz, Fehmarn or Heiligenhafen

Discover suitable experiences & accommodation

  • Spend the night in a tree house - nature, comfort & design at treetop level

  • Treehouse lodges - stylish retreats with a feel-good factor

  • Treehouse lofts - with a view of nature, fields or the alder forest

  • Girlfriend wellness in a tree house - time out together with sauna & hot tub

  • 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 your four-legged friend

  • Nature in winter - your retreat in the quiet season

  • Breakfast & picnic basket - indulgence for your time out

  • Glamping resort on the Baltic Sea - nature experience with comfort

Sleep at the height of the treetops - Our Baltic Sea tree houses & tiny 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 lofts & lodges invite you to simply let go.

Even the first night in a treehouse feels special - but it takes time to really arrive.

That's why a stay of two nights or more is deliberately part of our concept. We don't offer a quick overnight stay, but a real time-out in nature - at treetop level.

Baumhaus Lodge

Tree house lodges

  • Up to 2 people
  • 38 m²
  • Large balcony
So much comfort in such a small space! Whether alone or as a couple - our tree house lodge is the ideal place for a unique break in nature. The open-plan lodge is modernly equipped and offers…
learn more
from 239 €

Tree house suites

  • Up to 4 people
  • 68 m²
  • Extra bedroom
A new take on glamping. Impressive views, a sun terrace to relax on and a well thought-out room concept for up to four guests - in our tree house suite, you can expect a nature break with maximum…
learn more
from 279 €
Das Baumhaushotel an der Ostsee
Tiny House Alva im Ostsee Baumhaushotel

Tree house suites

  • Up to 4 people
  • 68 m²
  • Extra bedroom
A new take on glamping. Impressive views, a sun terrace to relax on and a well thought-out room concept for up to four guests - in our tree house suite, you can expect a nature break with maximum…
learn more
from 219 €
Logo Ostsee Baumhaus Hotel (invertiert)

Alte Landstr. 16

23758 Wangels / Ostholstein

T+49 4382 / 356

Einfo@ostsee-baumhaus.de

Visit us on Instagram Ostsee Baumhaus Hotel auf Instagram (öffnet neuen Tab)

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