Ключевые слова: adventure, balearic islands, cave interior, cave lake, cave photography, cavern, caves, caves of the dragon, crystal cave, dark cave, europe travel, geology, hidden acc, limestone cave, mallorca, mediterranean, mysterious, natural landmark, natural wonder, nature, porto cristo, rock formations, scenic cave, spain, stalactites, stalagmites, subterranean, tourist attraction, travel destination, underground cave, vacation spot,