The main fissure has an average section of 10 metres in height by 2 in width, although its progression involves continuously overcoming narrow sections, passages between blocks and steps. The main gallery is formed by a series of galleries that follow one another in parallel; at the end of each gallery it narrows in width until it continues as a crawlway that sooner or later becomes impassable; sometimes a single gallery has an upper floor and a lower one forming two superimposed galleries. The floor of the cavity is a continuous pile of blocks.

There are two important branches; the first is taken halfway along the route; just after the largest chamber and having climbed 7 metres of elevation gain, a narrow hole on the left will lead us to a series of galleries with no further continuation.

The other branch is found almost at the end of the cavity; it is a crossing of fissures that, after some initial metres of notable dimensions, must be climbed and continued through narrow sections that will lead us to a series of galleries which end after a route of 80 metres.

Given the complex characteristics of the cavity, with continuous climbing over blocks, scrambles, narrow passages and steps, a brief general description is given, referring you to the viewing of the survey in order to gain a more detailed idea of the cavity.

The complete through-trip of the cavity can be made by entering through the easternmost entrance and exiting through the western one (the reverse is not possible).

Through the eastern entrance, we will descend some steps and go through some crawlways between blocks that will place us on the ceiling of the main fissure, which we will descend by means of a 10-metre rappel on a double rope (before removing the rope, make sure you know the exit route).

To exit the cavity, you must follow the main fissure to a 5-metre pit that must be climbed to place ourselves in the exit gallery.