Ключевые слова: ancient, archeological, attraction, cave, cavern, chasm, collapsed, day, deep, depression, down, formations, geologic, geological, greek, grotto, heaven, historical, hollow, inside, interior, landmark, limestone, mediterranean, mersin, mystery, myths, narlikuyu, natural, nature, none, phenomena, pit, rock, rocky, shaft, sinkholes, stalactite, stalagmite, stone, tourism, touristic, travel, turkey,