This port city was never conquered by the Spaniards and was one of the last Maya outposts left standing during their revolt against Mexican rule in the War of the Castes during the 1840's.  There is no question why Tulum holds great significance to the Mayans. An impressive sight at Tulum is an imposing castle standing on the edge of a 12 meter cliff at the top of the ruins. Visitors may wish to bring a swim suit to cool off in a cove at the bottom of the site but there are no facilities. The area prime trekking ground for those who want to experience jungle wildlife living amidst pristine rain forest and unrestored Mayan ruins.