One of the most outstanding places to kayak in Mérida is at Sisal Carbonera, where you can paddle through brackish waters (a mix of fresh and salt).
Cruise passengers from many different countries kayak at Puerto Progreso and Yucalpetén, both in the sea and inland waters.
The Celestún National Park was declared a U.N. World Heritage site in 1986. When paddling along its rivers, kayakers can see pink flamingos nesting and breeding, as well as a mysterious petrified forest.