Note that the albergue here is closed indefinitely and that a private Hostel exists.
... at Casa Rural Julio Vegas in Santiago del Campo is excellent. Best so far.
Both albergues closed. No accommodation at the Embalse. August 2020.
Albergue de embalse de Alcántara is currently open. A lovely modern albergue close to the lake. €15 with breakfast and laundry included. Food a reasonable price. Beautiful location. As this is pretty much the only accommodation for several km, best to book in advance.