Xplor was the highlight of our Cancun vacation, so we left best for last. Xplor is a natural adventure park opened in July 2009. The park is situated approximately 35 miles (56km) south of the Cancun airport and occupies an area of 59 hectares, of which 8 are underground. Xplor offers 4 thrilling activities: zip lines, amphibious vehicles, underground raft adventure, and stalactite river swim.