There WAS no Cancun 40 years ago. It was created by the Mexican govt. who knew what the $$$$$$$$ of tourism meant to their economy. They will have developed their entire coastline within the next 10 years max. and just ONE of their last endeavors is the development of the Quintana Roo---coastline as one of the latest and newest bastions for tourist $$$$$$$$$. Their are numerous Mayan attractions inland, as well. Ask SIN--he knows.