The Toad's Gorge Nature · Librilla, Bajo Guadalentín, Murcia Image of Librilla, not of the place itself. El Estrecho del Sapo is a curious geological formation located in the Barranco de los Infiernos, in the municipality of Librilla (Bajo Guadalentín, Murcia). Its name comes from a local legend linked to the place. Photo: Sapoproductions (CC BY-SA 4.0) What to see and do in Librilla