Blick vom Hausboot Antje Frieda auf den Binnenhafen Fehmarn

Fehmarn Vogelreservat Wallnau - Fliessgewässer

Discover Fehmarn - Enjoy a Baltic Sea holiday in a tree house 🌊🌿

Fehmarn - the third largest island in Germany - delights visitors with its maritime charm, beautiful beaches and breathtaking nature. Whether it's a walk along Grüner Brink, a visit to the Fehmarn Marine Centre or a trip to the famous Jimi Hendrix memorial stone - there's plenty to discover here. But what if you could combine this experience with an extraordinary overnight stay? Just 30 kilometres away, the Ostsee Baumhaushotel is waiting for you - for a special break in the middle of nature.

Fehmarn - A Baltic Sea holiday for every season

Whether spring, summer, autumn or winter - Fehmarn has its charm all year round. In spring, nature awakens and the island is a fresh green colour. Summer invites you to enjoy water sports and relaxing days on the south beach. Autumn fascinates with a stormy Baltic Sea and perfect conditions for kite flying or surfing. In winter, you can enjoy the tranquil expanse of the coastal landscape and cosy hours in the cafés of Burg auf Fehmarn.

What makes Fehmarn special - What makes Fehmarn special?

Fehmarn is easily accessible via the impressive and striking Fehmarnsund Bridge and offers countless highlights for your Baltic Sea holiday:

🏝 The Südstrand – Fehmarn’s most beautiful beach with shallow water, ideal for soaking up the sun and, of course, swimming.
🦋 Fehmarn Butterfly Park – A tropical paradise with hundreds of free-flying butterflies.
🐠 Fehmarn Marine Centre – One of Germany’s largest aquariums, featuring impressive sharks and coral reefs.
🌾 Der Grüne Brink – A unique nature reserve for birdwatchers and nature lovers.
🌅 Lighthouses & Cliffs – Fehmarn has five impressive lighthouses and the spectacular Staberhuk cliffs.
🎸 Jimi Hendrix Memorial Stone – A memorial to the legendary open-air festival of 1970.
🦆 Wallnau Waterbird Reserve – A paradise for birdwatchers, home to over 250 bird species and offering guided birdwatching tours.

Explore Fehmarn by bike 🚴

Fehmarn is a paradise for cyclists! With well-maintained cycle paths, you can explore the island at a leisurely pace:

🚴 The Fehmarn Island Circuit (65 km) – A full loop around the entire coastline with breathtaking views.
⚓ The Harbour Tour (38 km) – Discover the island’s harbour towns and get to know Fehmarn from its maritime side.
🐦 The Waterbird Reserve Tour (36 km) – Perfect for nature lovers, with stops at the best birdwatching spots.
🌅 The Scenic Route (64 km) – A route taking in Fehmarn’s most beautiful panoramic spots.

Burgstaaken and Burg Tiefe harbour are also popular stops for cyclists. This is also where the exclusive houseboat Antje Frieda is moored, offering a unique alternative for a special overnight stay on the water.

Staying in a treehouse – your nature retreat on the Baltic Sea 🌳

After an eventful day on Fehmarn, an extraordinary night’s stay in a treehouse awaits you at the Ostsee Baumhaus Hotel. Instead of a traditional hotel or holiday flat, here you’ll sleep five metres above the ground, right in the heart of a natural paradise. And because Fehmarn is so beautiful, we’ve named one of our treehouse lofts after the island of Fehmarn: the “Baumhaus Loft (Ferienhaus) Fehmarn”.

✨ Why a treehouse instead of a hotel?

Pure relaxation – enjoy the peace and quiet amidst trees and meadows.
Sustainability – Our treehouses are made from natural materials and are built to conserve resources.
Modern design – Large panoramic windows, air-conditioned rooms & Scandinavian flair.
Indulgence & relaxation – Enjoy a breakfast basket in the treehouse or unwind in the Baumhaus SPA with a sauna and hot tub.

Fehmarn & treehouse – the perfect combination

🌊 Explore Fehmarn during the day, stroll through Burg on Fehmarn or take a walk along the coast.
🏡 In the evening, return to your cosy treehouse and enjoy the natural surroundings.
🌅 Or round off the day on our panoramic terrace as the sun sets.

Whether you’re planning an active holiday on Fehmarn or simply want to relax – our Baltic Sea treehouse hotel is the perfect addition to your Baltic Sea island break. The treehouse hotel is a small holiday park on the Baltic Sea.

By the way, Fehmarn is one of our personal favourite places, which we’re happy to recommend.

📍 Book now & experience Fehmarn in a special way!

Show availability & prices

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.

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 €

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 €

Your overnight stay in nature - The tree house hotel

The Ostsee Baumhaushotel is the only tree house hotel of its kind in Schleswig-Holstein - and a real insider tip for anyone who loves nature, design and relaxation and would like to spend the night in a tree house.
Situated between rolling hills, old fruit trees and a small, rustic alder forest, our tree houses offer a stylish break high up in the treetops. With sophisticated Scandinavian design, sustainable construction, air conditioning, high-speed WiFi and a private terrace, each tree house combines modern amenities with the feeling of freedom and security in nature.

You won't find mass accommodation here, but a retreat for special moments - whether as a romantic couple, a short break alone or an oasis of inspiration for creative minds.

Your breakfast awaits you in a picnic basket, the starry sky flickers over the natural pond, and if you like, you can enjoy our wellness area with sauna and hot tub in the middle of the countryside. Welcome to the first tree house hotel on the Baltic Sea - one with nature, sustainable with a vision.

Our tree houses on the Baltic Sea - Retreats at the height of the treetops

Time for two at the Baltic Sea - Your conscious time-out in nature

Baltic Sea tree house hotel - Your design hotel in nature

No entries available