Near Tulum, Sistema Sac Actun is intertwined with a vast array of cenotes, once considered holy gateways to the underworld by the ancient Maya and still enchanting explorers today. Ancient disease ...
Sac Actun is a prime example. This underground river and cave system is among the longest in Mexico, measuring nearly 260 miles long with a maximum depth of 300 feet. There are 111 cenote ...