There are an estimated 6,000 cenotes in Mexico so it easy to find one near you while on vacation. In the Tulum area there are nine. Some have intriguing names like the Temple of Doom and Carwash. This is the Gran Cenote which is one of the most popular. The Grand Cenote is located about four miles north of Tulum while on the road to the town of Cobá and the Mayan ruins.