Cave of el Diablo Nature · Alcalá del Júcar, La Manchuela, Albacete One of the caves bored into the cliff of Alcalá del Júcar, running right through the promontory and looking out over the river. Beside it are the fortified cavities of Garadén and Masagó. Photo: Fotografía: Javier Marín (CC BY-SA 4.0) What to see and do in Alcalá del Júcar