Skip the overcrowded public cenotes and hit this eco-park for a subterranean river trek that feels like another planet. You will swim through crystal-clear caverns and explore five distinct cenotes without the Tulum crowds. Budget four hours for the full circuit, including the underground cavern lunch. The water stays a chilly 75°F, so grab a wetsuit if you run cold. Book the guided underground tour to access the most secluded limestone formations.
