Avenc de la Papallona

From the road closed to traffic that goes to the Campgràs doline, we must take the path that passes by the avenc de la Silvia, Asensio, Lluís Sola and Llambrics and that comes back out onto the road at the height of the Campgràs doline. Once on the flat area where the avenc de la Sílvia is found, a small path heading south will lead us to the beginning of a ridge where we will find the avenc B-3; from here, to the left and heading east, we will see a collapse, in the lowest part of which the avenc del Querol opens; 6 metres before reaching it we will find the avenc de la Papallona.