Summer: daily show cave tours without advance booking
01 June to 09 July at 11,12,13 and 14 hrs.
10 July to 09 September at 10, 11, 12, 13, 14 and 15 hrs.
10 September to 14 October at 11,12,13 and 14 hrs.
Winter: 15 October to 31 May
daily guided tours on request
Registration the day before until 3.00 p.m.