lowlight stalactites in the cove mythologically forming the angel of saint michael, gibraltar

lowlight stalactites cove mythologically forming angel saint michael grotto same name gibraltar british deep tunnel exploring united kingdom uk outdoor nature geology limestone grotto caving texture mystery speleology rock mystic myth devotion cult famous attraction stalactite formation underground illumination archangel sanctuary bright art decoration travel visiting destination tourism touristic lights colored projection cavern cave michael inside interior black dark lowlight gibraltar europe