Waterfall from Slate Cavern Tunnel entrance, Dinorwig Quarry (Dinorwic Quarry), Eryri (Snowdonia National Park), North Wales, United Kingdom

waterfall tunnel slate cavern dinorwig quarry snowdonia north wales nature landscape flowing water rocks greenery entrance tourism scenic outdoor feature natural beauty terrain eryri hiking adventure tranquility cold stone moss environment wilderness cave park cascade gushing location exploration geology source mountain features cliffs woodland stream seasonal views freshwater formations hidden