Hotel with swimming pool in the Sauerland: two pools, saunas and a snow cave
Two heated pools, three dry saunas, a sweat bath, a steam bath and a snow cave - all accessible in a bathrobe.
A hotel with a swimming pool in the Sauerland, where you can swim instead of just relaxing: The DIEDRICH Wellnesshotel & Spa in Hallenberg, 15 kilometers south of Winterberg, has two pools: the pillar-shaped indoor pool with 12 × 5 m, views of the valley and 29 °C warm water, and the 20-meter infinity outdoor pool, heated to 31 °C all year round. Adults only from 16 years old; you won’t find any children’s pools or slides here.


The pools will be ready soon
- Column bath: 12 × 5 m, 29 °C, beds on two levels, daily from 07:00 to 22:00.
- Infinity outdoor pool: 20 × 5 m, 31 °C, all year round; closing time according to weather and season.
- Saunas: three dry saunas, Roman sweat bath, steam bath and snow cave, from 11:00 a.m. to 9:30 p.m.
- The house: Adults Only from 16 years old, 65 rooms, half-board with a four-course menu at the table.
Both pools are part of the four-level spa area that is included in each rate. Day-spa guests can use it as part of our Day spa packages.
The pillar bath: Swimming pool with a view of the valley
Two levels filled with columns that resemble a Roman bathhouse and a basin measuring 12 × 5 m with 29 °C warm water: The column bath is the place for swims in the morning and for the hours when the wind is blowing outside. Through the panoramic windows you can see the Hallenberger valley while swimming; around the basin the sun loungers are located on two levels, and the swimsuit bistro is a few steps away. The column bath is open daily from 07:00 until 22:00.


The infinity outdoor pool: Swimming with a view of the valley, even in winter
20 meters long, heated year-round to 31°C, and designed so that the water edge merges into the landscape: Those who swim to the edge of the pool can look out over Hallenberg and into the hills of the Medebach Bay. In summer, the pool terrace with sun loungers and drinks from the bathrobe bistro, and in winter, the steam over the water. Open from 07:00; closing time depends on the weather and season.
Saunas and snow cave
In addition to the two pools, there are three dry saunas – the Finnish sauna, the fir-wood sauna and the panoramic sauna with a view of the nature – as well as a Roman sweat bath and a steam bath for humid warmth. We deliberately do not offer hot baths; in the dry heat you can stay as long as you like. For cooling off, there is the snow cave, which is open all year round. Between the corridors, you will find yourself in the "Timeless" relaxation room – hammocks, double beds, dim light.


Already in the water on the day of arrival
The spa area is open to you from 12:30 on the day of arrival; your room is ready for occupation from 15:00. Bathrobes and wellness bags are provided; in the morning breakfast is served until 11:30, in the evening the four-course menu arrives at your table. If you only want to use the swimming pool for one day, you will find it on our website. Day Spa page the packages with breakfast, evening menu or as an evening spa all in one; those planning to stay two nights can read what’s included. Wellness weekend in NRW belongs to us.

Hallenberg in the Sauerland: Location and how to get there
15 kilometers south of Winterberg, NRW - Address:
Nuhnestraße 2
59969 Hallenberg
- about 45 minutes north of Marburg
- about 90 minutes south of Paderborn
- about 90 minutes west of Kassel
- about 100 minutes south of Bielefeld
- about 100 minutes north of Frankfurt
- approx. 140 minutes north-east of Koblenz
- approx. 140 minutes east of Düsseldorf
- approx. 140 minutes east of Cologne
Frequently asked questions about the hotel with swimming pool in the Sauerland
How big is the swimming pool at DIEDRICH?
The indoor pillar pool measures 12 × 5 meters, the outdoor infinity pool 20 × 5 meters. Both are designed for water skiing; there is no children's pool or slide because our house is Adults Only from 16 years old.
Is the outdoor pool also open in winter?
Yes. The infinity outdoor pool is heated all year round and open from morning until evening; the closing time in the evening depends on the weather and the season. Especially in winter, when the steam rises above the water and snow lies on the hills, it is the most beautiful place in the house for many guests.
Can I use the swimming pool as a day visitor?
Yes, as part of our Day Spa packages with breakfast, with an evening menu, or as a pure evening spa. Because we only allocate a limited number of seats each day, we kindly ask for a reservation in advance; adults-only policy also applies at the Day Spa from the age of 16.
Is the hotel with a swimming pool suitable for families with children?
No. DIEDRICH is a wellness hotel for adults aged 16 and over, throughout the entire building and every day. The pools are places to swim and relax, not to have fun. For parents looking for a few days alone together, that’s exactly the reason to come.
How warm are the pools?
The indoor pillar pool has a temperature of 29 °C, while the infinity outdoor pool is heated to 31 °C all year round. Both temperatures apply year-round; in winter, the outdoor pool is significantly warmer than the air, and the steam over the water is part of the experience.
Room, kitchen and surroundings
65 Rooms and Suites in four sections of the building, honestly described by location and bathroom; one Restaurant, which is served at the table in the evening instead of at the buffet; Hallenberg is located between the Rothaargebirge and Medebacher Bucht, ten minutes’ walk to meadows and forests. This is what a stay can look like, as shown by the photos below. Wellness weekend for couples, the , who Girlfriend's wellness and that Wellness weekend in the Sauerland; anyone from Cologne, Düsseldorf or the Ruhr area reads on Wellnesshotel NRW, Why the round two hours are worth it.
