Cenotes are designed once the limestone floor collapses, building an opening into the Yucatan’s significant underground river process. A lot of people visit them to go swimming, scuba diving or snorkeling. Believe it or not, you don’t really have to go much from downtown Cancun to experience a little nature. https://cancunactivities70368.topbloghub.com/38275057/everything-about-cancun-activities