The dive begins on a plateau about 8 m deep, where you will come up to a vertical wall. Here, the first cave opens up to reveal fascinating light effects inside, which are produced by a split in the ceiling. You will find that the brightness decreases as you enter the cave until you reach a bottleneck, beyond which a flashlight becomes necessary. On the right hand side, you will notice an opening that leads into a second smaller chamber, which is circular in shape and has a sandy seabed. The chamber’s narrow opening allows for at most two divers to enter at a time, and the bottom of the cavity immediately beyond the second chamber forms a sort of gooseneck shape that obstructs the passage, thus darkening the entrance to one of the most impressive caves of the Pastizza itinerary: a large room that rises above sea level, where you can listen to the silence of this natural wonder. The substrate in this room is mostly rocky, but includes a small patch of sand. At this point we head back through the various chambers in order to make our way out of the cave.