Opening hours: From Pentecost Sunday to the end of September on Sundays and public holidays from 9 a.m. The last tour starts at 4 p.m.!
Outside these times, special tours can be arranged for groups of ten or more people (if there are guides available).
For further tours we ask you to contact the Rettenwan cave directly or under the following link http://www.rettenwandhoehle.at/