Kristall „Heißer Brocken“ Thermalsole- und Saunalandschaft
Clausthal-Zellerfeld, Niedersachsen, Germany
- Water temperature
- 36 °C
- Pool range
- 33-36 °C
- Source temperature
- 36 °C
A textile-free thermal brine and sauna complex at Clausthal-Zellerfeld in the Harz, with a short-stay adult ticket at 15.50 euros.
About
Kristall „Heißer Brocken“ is a thermal brine bath and sauna landscape at Altenau in the Upper Harz, part of the town of Clausthal-Zellerfeld in Lower Saxony. Bathing here is textile-free.
Pools
The indoor thermal pool holds a 3% brine at about 33 °C, with a large whirlpool beside it at 36 °C. Outdoors the same 3% brine continues in a pool 1.35 m deep, and a second outdoor pool carries a weaker 1.5% brine at about 33 °C with a waterfall and a whirlpool. The strongest water is in the Hexen-Zuber, a 12% brine at about 36 °C, dense enough that the venue compares it to the Dead Sea. Pool temperatures across the bath run from 33 to 36 °C.
Programme and rest areas
Water gymnastics runs daily at 11:30 and is included in the admission. There are rest rooms on the ground floor and on the first floor, the latter with a sun terrace.
Visiting
The bath opens daily from 09:00 to 21:00, and until 22:00 on Fridays and Saturdays. A short-stay adult ticket is listed at 15.50 euros. It is at Karl-Reinecke-Weg 35.
Water
Source: kristalltherme-altenau.de · Checked Aug 16, 2026
Prices
| Ticket | Amount | Source |
|---|---|---|
| Adult short ticket | €15.50 | kristalltherme-altenau.deChecked Aug 16, 2026 |
Facilities
- Textile-free
Only facilities that are recorded are listed. An absent entry means nobody has recorded it, not that it is missing.
Location
Karl-Reinecke-Weg 35, 38707 Clausthal-Zellerfeld
Reviews
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Location data © OpenStreetMap contributors, ODbL. · last checked against the source on Aug 13, 2026