Esquerda Nº1 del Clot de l'infern

From the C-26 at kilometre 174 a track leaves (camí de Moreta i Viladonja) that passes by Can Benet and Can Planes; past the Pla de la Barraca we continue straight on, at the next junction we take the left, running parallel to the Rec de la Riba. At Sant Esteve de la Riba we turn right along the Clot de l'Alba, following the camí ral d'Estiula as far as the collada de Can Carles; at the crossroads we continue straight ahead, but after a few metres we turn right. At the Pujol de Llentes we turn left; once past the camp de la Llobera we continue as far as the masia de Llentes, we follow the track and 390 metres from the masia we turn right onto a track that we follow for some 650 metres until it becomes impassable; to begin with we continue on foot along the path, then cross country in a W direction until we cross the Clot de l'Infern; some 50 metres further on and in the middle of the wood we find the cova d'en Nil de la Riba, from here we continue in a N8E direction for 82 metres where we find the lower entrance of the Esquerda nº 1 del Clot de l'Infern.