"Altenstein Cave" is located in Schweina and is the oldest tourist cave in Thuringia. The cave was discovered in 1799 during the building of the road to Castle Altenstein. This karst cave was formed among the Upper Permian (Zechstein) calcifying algae reefs. Since 2019 the "Reef Complex of Altenstein" is a National Geotope.
Altensteiner Str. 5
Telephone: 036961 69320
Guided tours are available every Thursday and Sunday at 10:00 am and 2:00 pm
A schedule of concerts, special tours and lectures is found at www.altensteiner-hoehle.de.
Please call before you visit to confirm the regular tour schedule!