a tranquil waterfall cascades through the urbion mountains

contemplative biodiversity environment watercourse ecological enchanting meditative mysterious waterfall mountains biosphere ecosystem landscape nostalgic tranquil cascades exterior mountain outdoors peaceful solitary sunlight duruelo october cascade castile ecology flowing fluvial foliage magical natural outside scenery solated urbion sierra autumn dreamy europe forest nature remote serene shadow stream spain urbin brown green world quiet river rocks soria stone water 2024 october