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In September, the cave will be open for the first two weekends according to the regular tour schedule. Guided tours are only until 3 pm. There will be no tour at 5 p.m.
| Saturday, September 3 and Sunday, September 4, 2022 | 9 a.m. 11 a.m. 1 p.m. 3 p.m. |
| Saturday, September 10 and Sunday, September 11, 2022 | 9 a.m. 11 a.m. 1 p.m. 3 p.m. |
For closed groups, tours outside the regular schedule are possible by prior arrangement until the beginning of October depending on the weather conditions.