$79 U.S. (includes entry to the preserve, trip-related equipment, towel, showers, lockers and a light buffet lunch); $39.50 (ages 4-12). Excursion plus round-trip transportation from Cancún or Riviera Maya locations $109; $54.50 (ages 4-12). Reservations are required.
Guided trips depart daily at 9, 10, 11, noon and 1. Transportation from Cancún departs Tues., Thurs. and Sat. at 9, with hotel pickup times starting at 7 a.m. Transportation from Riviera Maya locations departs daily at 9 and 1, with hotel pickup times starting at 7:20 a.m. Visitors should be at the ticket office at least 20 minutes prior to the tour start time. Allow 4 hours minimum.