"Where the Sky is Born" Tour the Sian Kaan Biosphere reserve through one a professional guided boat tour which will take across tropical lagoons and through ancient Mayan canals that were once used by ancient peoples to travel from the Muyil through to the open sea. Snorkel, boat, swim and explore wild beaches. The memories of the colors and vistas of this day will live on forever. Something the whole family will enjoy. Remember to bring good shoes, a rash guard and a hat.