Ключевые слова: america, beautiful, blue, cave, cavern, cenote, cenotes, clear, crystal, forest, fresh, geologic, geology, green, groundwater, hole, inside, jungle, lagoon, lake, limestone, mayan, mexican, mexico, natural, nature, park, pond, pool, riviera maya, rock, roots, sinkhole, stalactite, stalactites, stalagmite, stalagmites, stone, swim, tourism, travel, tree, tropical, tulum, turquoise, underground, water, yaxmulito, yaxmuul, yucatan,