Grotte della Baix Penedès

The Baix Penedès brings together 70 inventoried cavities: 33 pits and 37 caves, which total 2845 metres of passage and reach a maximum depth of 70 metres. The lithologies present are limestone (46), dolomite (23) and conglomerate (1).

Among the longest cavities are the Cova d'Artús-forat del Vent, at 564 metres, and the Cova de Vallmajor, at 395 metres and 67 metres deep, known since ancient times and protected in 1998 as a World Heritage Site. As for depth, notable are the Avenc de Vallmajor, at 70 metres, located about 50 metres to the E-SE of the Cova de Vallmajor, and the Avenc de l'Arlà, at 63 metres, with a chamber discovered in November 2016 and a history that includes a crime from 1858.

Other relevant cavities are the Avenc dels Pinyerets, with 110 metres of passage and 38 metres of depth, discovered in 1933, with a first shaft of 15 metres and another of 7 metres, and the Avenc del Nostre Pare, 43 metres deep, discovered and explored by the SES of the Club Esquí Puigmal during the 1970s.