lake of la cueva, somiedo natural park, spain

cueva saliencia circular route lake pond somiedo natural park asturias spain europe path footpath walk mountain peak range hill geology geopark geologist rock formation mineral landscape nature wildlife environment ecosystem habitat biosphere ecology landscapescenary scenicsnature tourism ecotourism tranquil scene view scenery beautiful tranquility relaxation wildland parkland conservancy environmental conservation valley area recreation lagos principado