We left daylight in this hole behind ? and were very lucky in meeting a couple of spanish geologists exploring the caves with professional equipment. They took us down into a long cave system which was getting as narrow as 40 cm, but also holding surprises like big halls and which spit us out at a different place of the area. Great! It was kind of spooky down there but the scientists told us we would not have to be aware of spiders, scorpions or the like as no animals would survive in this extremely dry and salty environment. So if you have a good light, you could do some caves also in your own little group. We did not see to many intersections down there neither, so if you have enough, easy to go back in the cave we discovered.
Walking in the area into direction Valle de la Luna we found many little peaks to climb, but also deep valleys and black holes going downwards. Indeed, there are many caves. If you take a mag lite or the like you will find it great to discover one or the other cave.