Passion under the ground

Larra, in the Pyrenees of Navarre, is a paradise for speleologists, like the Himalayan mountains for mountaineers. There is the huge cave called BU56, which is almost 1,400 meters deep and, at the moment, about 23 kilometers explored. In fact, every year during the summer, an exploratory campaign is organized by the Basque College of Speleologists and the Federation of Speleology of Navarre to explore the cave a little more. They are scientific campaigns. We have witnessed this year.