Arrikrutz The Oñati Caves

We propose a trip to Gipuzkoa's entrails, also called " Sixth Continent ".
In the visit to Oñati-Arrikrutz's caves, topics are approached as, the system kárstic of Gesaltza-Arrikrutz with 15 km from development of galleries, the  more extensive of Gipuzkoa and the complete skeleton of the Leon of the Caverns, the first finding in the whole State and the third  in Europe.