 In winter the large esplanade of Puerto de Cotos becomes a sledding track.At the foot of the Older Sister, some 300 m south of Peñalara Great Lake and 2.075 km high, is the obsolete Zabala mountain shelter, which is now used only for storage of maintenance supplies.The hotels and lodges nearest to Peñalara Nature Reserve are in Puerto de Navacerrada and the town of Rascafría.