young man with backpack in front of a waterfall

castilla leon europe mazobres cascade mountain landscape palencia parque natural fuentes carrionas rock formation spain water activity adult airlibre caucasian chain circumscription countries country exercise folk forest health hikers hiking route hill jaunt journey junior kid little massif monte palentina range mountainous area nation nature people person river sierra sport stream summit teenaged territory top tour tourism travel tree trees trekking trip vegetation vitality walking waterfall young zone