Along the Mayan Riviera, just 16 km before the Mayan Ruins of Tulum and 4 km past Akumal, you find "Aktun Chen," which in Mayan means "cave with an underground river inside." Three caves with a "cenote" (underground river) have been discovered in the park.
The main cave is now suitable for an easy walking tour, which has been enhanced with indirect lighting for a better view and enjoyment of the thousands of stalactites, stalagmites and natural sculptures, all of them formed by water and calcium carbonate throughout five million years.
