The Laguna del Barco Nature · Puerto Castilla, El Barco de Ávila - Piedrahíta, Ávila A lagoon of glacial origin, also called the Galín Gómez lagoon, situated at 1,790 metres in an extensive valley in the western sector of Gredos, one of the three that open on the north face of La Covacha, the highest point of that part of the range at 2,399 metres. It drains through the Galín Gómez gorge towards that of los Caballeros, a tributary of the Tormes, and its natural outlet was dammed to increase its capacity as a reservoir; camping is not permitted in the area. Photo: Jorge (CC BY-SA 2.0) What to see and do in Puerto Castilla