Hotel with outdoor pool

The DIEDRICH Wellnesshotel & Spa in Hallenberg in the Sauerland is a hotel with an outdoor pool - and a Wellness hotel in NRW, Located in the Ruhr region and reachable in around two hours by car. Heated and with a picturesque view: The swimming pool is designed as an infinity pool, where you can enjoy the view of the valley for many hours of the day and where the sun shines for a long time.

Infinity pool with steam jets in the morning, next to it a terrace with lounge furniture and sunshades.

Looking out over the edge of the infinity pool and relaxing

The 20-meter x 5-meter Infinity Pool protrudes four meters above the existing hotel building, offering a unique bathing experience. From the edge of the pool, you can look out over the Hallenberger valley and enjoy the rising sun – pure romance. Around the pool you will find a cozy spot where you can make the most of the beautiful weather in the Sauerland – both in the shade and in the sun.

A woman, up to her shoulders in the water of the steaming outdoor pool, looks into the distance
Modern terrace with glass railings and elegant sun loungers, overlooking traditional houses.

Frequently asked questions about our hotel with outdoor pool in NRW

Is the infinity pool heated all DIEDRICH year round?

Yes. Our infinity outdoor pool is open all year round and heated to a pleasant 31°C. This way you can swim in the warm water while gazing out over the Hallenberger valley – in summer under a blue sky, in winter with snow on the hills.

Is the outdoor pool more suitable for swimming or just for relaxing?

Both. The outdoor pool is designed with dimensions of 20 x 5 meters so that you can relax and swim laps while at the same time having plenty of space to simply let go. Many guests start their day with a few quiet swims and then enjoy the gentle movement with a view of the valley.

For whom is a stay at a hotel with an outdoor pool Sauerland particularly suitable?

As an adults-only wellness hotel for people aged 16 and over, it is aimed DIEDRICH at couples, girlfriends, friends and solo travelers who appreciate tranquility. For those seeking a heated outdoor pool, saunas, relaxation rooms and good food in a relaxed atmosphere – without the hassle of children or dogs – this is the perfect retreat in NRW.

Can I use the outdoor pool as a day guest?

Yes, as part of our Day Spa offerings, day guests can also use the wellness area with indoor and outdoor pools. Since we deliberately limit the number of Day Spa seats, a prior reservation is essential to ensure a pleasant and quiet environment in the spa and outdoor pool areas, so that you can truly enjoy your time off.

How is the outdoor pool integrated into the entire spa area?

The infinity outdoor pool is connected directly to the indoor pool and the spa levels. You can easily switch between the indoor and outdoor areas, saunas, relaxation areas, and the bathrobe bistro without leaving the house. This way, the outdoor pool feels like a harmonious part of your wellness break at any time of the year.

Are there enough sun loungers and seating areas around the outdoor pool?

Yes, around the infinity pool and on the adjoining terrace you will find various sun loungers and comfortable seating areas. Depending on the time of day, you can choose to find a spot in the sun or in the shade and enjoy the view over the hills of the Sauerland - with plenty of space to breathe.

Is the hotel with an outdoor pool located in a quiet area - or rather in a busy place?

Our house is located in Hallenberg in the Sauerland, about 15 kilometers south of Winterberg. From the infinity pool you have a view of a green valley with half-timbered towns and hills, instead of the city landscape. This way you can combine the good accessibility in NRW with real nature and a deliberately quiet environment for your wellness holiday with an outdoor pool.

Swimwear bistro in the wellness hotel DIEDRICH
A woman is lying on her side in a bed in the relaxation area of the wellness hotel and is sleeping.
A woman in the outdoor pool leans with her back against the edge of the basin and has her arms placed there.

As a wellness hotel with an outdoor pool, it is a summer destination

We love what we do. Our hotel, our everyday life, our region. Especially in winter, this is popular Sauerland among many guests for a wellness holiday. So we immediately picture snowy landscapes here. Nothing fits this better than a relaxing break in the warmth. Let the view from the heated outdoor pool sweep over the cold of winter, enjoy the pleasant heat in the sauna, or dine by the crackling of the fireplace. Yes, that Sauerland is almost perfect for a wellness holiday in winter.

What many do not know, however - even in the warmer months, it is beautiful here.

Here in the Sauerland there are many lush green meadows where horses, sheep and cows graze contentedly. There are gentle mountains that are sometimes difficult to climb, but offer a beautiful view of the Sauerland from many places. Hiking trails characterize the landscape and convey an impression of the region's diversity. All around there are lakes, such as the Edertalsperre, the Hillebachsee or the Weddelsee. All of them attract with their own special features - with water sports, as an idyllic fishing paradise, with a beach or with picturesque shores. There are sights, monuments and vibrant culture. Just think of the open-air stage where the Passion of Christ is performed every ten years, the small ice museum or the Kump with its interesting exhibitions in the city center. Despite all that, the Sauerland around Hallenberg is still a secret tip for a relaxing wellness holiday in the summer.

Two hiking friends are sitting on the stable Sauerland chair and point to the hilly landscape.

Your wellness holiday at the hotel with heated indoor and outdoor pools

Im DIEDRICH Wellnesshotel & Spa focuses on wellness for the hotel, so relaxing moments are part of the daily routine – exactly the way you feel most comfortable. For this reason, our wellness hotel offers various places to retreat, cozy corners, and plenty to discover.

The wellness area includes an interior pool that is flooded with light and has a slightly Roman-style appearance, which is why we lovingly refer to it as the Column bath You have the opportunity to choose your favorite sun lounger on two levels around the indoor pool and relax here - with a view of the outside world.

Indoor pool at the hotel DIEDRICH, the wellness hotel Sauerland

Hotel with heated outdoor pool and saunas

A balance between cold and heat

The saunas include a Finnish panorama sauna with a large window next to the swimming pool, another Finnish sauna, a steam bath, a Tecaldarium, a fir-wood sauna with a view out to the outside as well as our snow cave, where you can cool off perfectly - perfect on hot days or after a strenuous sauna session. Here you experience every temperature in a new way. In addition, there is a large lounge area between the sauna sessions as well as a relaxation area where you can enjoy the reflections of the water from the pool above through a round glass window. An unparalleled sense of space that has a calming effect thanks to its softness. The heated outdoor pool is probably the most striking feature of our wellness area. Here you can relax on hot summer days and enjoy the moment. The pool is heated, so the water temperature from the infinity pool is always pleasant and invites you to swim in the heated water all year round.

Spa area

View of the Finnish sauna with a view outside through the large panoramic window, through which the sun’s rays shine in
Two girlfriends are having fun in the snow cave and playing with the snow.
Large mirror wall in the huge fitness room DIEDRICH Wellnesshotel & Spa
A woman lies on the wellness bed and receives a neck massage

Pamper the body - actively and passively

Playful interplay between movement and relaxation

Exercise – or at least an exercise program – is also part of a wellness vacation. Get your energy up in our fitness room, take part in yoga or meditation classes in our Haus der Mitte, or take part in fitness activities in the large fitness room. All the classrooms are bright and have windows, so that you are additionally motivated by the sun during your morning workouts or do not have to do without the light of the colorful twilight at night.

Of course, you can still indulge your body during a treatment. Whether it’s a relaxing massage, soothing facial care, or an Ayurvedic ritual: effortlessly, you can enjoy the moment and gain some distance from everyday life. In our treatments, we rely on natural cosmetics that are beneficial for your body.

Course schedule

Enjoyment with all your senses

Culinary arts is one of our strengths

Delicious food is also essential during your holiday in the Sauerland. Take a seat in our restaurant, which is divided into different areas. Discover the "Old Post Office", "Poststübchen" or "Antons", all of which are decorated in earth tones. In our cozy Stammhaus restaurant we serve our half-board menu. Fine cuisine – and the pursuit of fulfilling our guests' culinary wishes – has always been of high importance to us. Whether with your girlfriends, friends or on a romantic dinner with your loved one or your significant other: We do everything to ensure that you feel completely comfortable.

Two women laugh and chat over dinner in a brightly lit restaurant.
Stammhaus Premium - Side view in DIEDRICH Wellnesshotel Hallenberg: box spring bed, seating area and roof beams