1.- Swim with dolphins, I think this is one of the best experiences I've had. I did it at Xelha. Now theres and allinclusive package to swim with dolphins and visit xelha
http://www.dolphinsrivieramaya.com/content/tours-and-activities
2.- Jungle crossing, here its an jungle adventure, jusy beware of mosquitos haha There are at little at the jungle. It also includes snorkeling and traveling on a 4x4 http://www.alltournative.com/tours-products/jungle-crossing
3. Xcaret its awsome, its like a paradise, too much to see and to do. But i think the best its the night show




