On the left bank of the riera d'Escales, 15 m of elevation above the streambed. About 270 m west of the cova de Coll Roig.

To get there, we will start from the Sadernes parking area and follow for about 2 kilometres the track that goes up the riera de Sant Aniol until reaching a place with space to leave the cars (Pàrquing Núm-3). Here a path sets off that crosses the riera and climbs up the other slope until reaching the coll Roig, where the descent begins that takes us to the streambed of the riera d'Escales. We will go upstream and very soon we will see on our right the cova de Coll Roig. Here the riera makes a turn to the left and a relatively straight stretch begins heading west. We will walk along it for about 270 m when, at a point with no clear reference, we will leave the riera to climb up the left hydrographic slope. Thus we will reach the lower entrance of the cavity, located about 15 m of elevation above the streambed. The other two entrances are hanging.