Near Merida, the Celestun National Park is located in the northwestern section of the Yucatan peninsula at the end of SR281 near Celestun, which is about 60 miles west of Merida. The Celestun National Park contains a maze of dirt roads for hiking passing varied wildlife such as otters, jaguars and sea turtles.
Note: Prior to 1997, the topographic maps developed by the federal government used the NAD27 CONUS datum. Starting in 1998, the government transitioned to the ITRF92 datum (some maps show both datum), which is pretty much identical to the WGS84 datum.
Overall, Celestun National Park is the 3rd most popular hiking trail of all 11 hikes in Mexico.