boca del asno recreational space, sierra de guadarrama national park, spain

boca del asno recreational space sierra de guadarrama national park spain eresma river scot pine forest mountain ecotourism water segovia wildlife tree castile leon biodiversity biology biotope calm relax freshair conservation ecology ecosystem environment habitat landscape natural nature sanctuary wild wildland wood woodland europe travel tourism scenic view scenery beauty beautiful cute observation stream flowing fresh environmental valsain castilla