vibrant rainbow in rocky cavern with sunlight filtering through in liechtensteinklamm, austria

liechtensteinklamm liechtenstein gorge austrian alps austria rainbow cavern rocks sunlight nature cave rocky light color scenery natural beauty serene terrain geological formation vibrant colorful interplay outdoors adventure landscape texture pattern beautiful sunbeam underground exploration environment sunshine travel hidden mystical tranquil shadows illumination refraction peaceful gem aweinspiring filtering illuminated showcasing beneath rugged rock face austria emphasizes setting