Grotte di Sant Aniol de Finestres

Sant Aniol de Finestres, a municipality of the Garrotxa, contains 10 catalogued cavities: 3 pits and 7 caves. Together they total 616 metres of passage and reach a maximum depth of 43 metres. All the known cavities of the municipality develop in sandstone.

The Avenc del Bloc is the most notable cavity, with 211 metres of passage and 43 metres of depth; it has been known since time immemorial and was explored from 1967 onwards. It is followed in passage length by the Cova de les Angúnies, at 190 metres, and the Cova del Llop, at 116 metres, with access from Sant Feliu de Pallerols and first explored in 1968. Other cavities in the municipality are Bora Bonica, with 31 metres of passage, explored by the SIE – CEA on 19 December 1971, and the Avenc Pujolar, 14 metres deep, discovered and explored on 4-4-1997 by the Centre Excursionista d'Olot.