The spring consists of three entrances. Entrance 1, 1X1 metre, is located on the E side of the spring; triangular in shape, like the rest of the gallery, it gives access to a small step. Past this, the gallery descends in a gentle slope, with a good number of unstable boulders along the route, which is currently 25 metres, with a depth of -9 metres at the point of maximum immersion.

Entrance 2 is located in the central part of the spring; a narrow crawl allows access for about 2 metres, from where about 10-12 metres are sounded, but the instability of two large boulders prevents progress.

Entrance 3 consists of a vertical passage of 0.30X0.40 metres after carrying out a considerable dig. The small shaft of about 10 metres depth, in its middle half forms a small chamber between boulders, further down it gains dimensions considerably (6X5 metres). At the other end of the chamber (8-9 metres) and in its upper part, a possible window can be seen.

They do not appear to have a direct connection between the three entrances at this level; the sum of the three accesses gives 45 metres of development.

The base of the chamber of entrance 3 is totally occupied by a sump, preventing one from standing in it. The sounding of the sump carried out with the same rope of the rig was calculated at -7 metres.

Entrance 1 gives access to a small step; past this the gallery descends in a gentle slope. Entrance 2: a narrow crawl allows access for about 2 metres, from where about 10-12 metres are sounded, but the instability of two large boulders prevents progress. Entrance 3: a vertical passage of 0.30X0.40 metres after carrying out a considerable dig.