Basa de la Mora. That is what they call Plan lake in the Chistau valley. A lake in whose waters dwells a Moorish queen –a fantastic female figure with snake-like metallic reflections surrounding her slim body– who dances at dawn every San Chuan (Saint John’s Day) on the waters of one of many magical places in Sobrarbe, upper Huesca. Because there’s something magical about Huesca.