It is a speleoturistic tour for those who are over 18. In this guided tour, the visitor can enjoy the geological singularities and the great speleothem of Arrikrutz, as well as the beauty of the subterranean riverbed of the river Aldaola. (Duration of 3 h 30 min).
Information
943 08 20 00 or arrikrutz@onati.eus.
