From la Riba along the TV-7044 road towards Farena, after km 3, a small parking area appears on the left below the youth camp. From this point, a path crosses the Brugent river, leaving the Moli de la Font Gran on the right; we leave a path on the right towards la Riba (signpost) and, following the main path, we find another junction: we continue to the right, passing the avenc dels Tres Grans and del Xalau. Then we find a new junction which we follow along the left-hand path towards the Penya Roja (signpost Penya Roja-Cingle dels Pins Alts). We find a rope on a small step, we follow the path for a few metres crossing two short steps, then we turn right among the weeds in a NE direction looking for the cliff, we scramble down some steps covered by weeds and many arítjols, we find the entrance of the avenc Petit dels Talpets, about 20 metres to the N towards the cliff opposite, climbing over some boulders the entrance of the avenc dels Talpets appears, and next to the cliff we find the other two entrances.