In Cancun spring break is not the insane party it once was, but the nightlife can be wild as you want. The dance clubs in the hotel zone have catered to the college set for years, and for six weeks each spring they are packed to the rafters every night.
Down the Riviera Maya south of Cancun there are all sorts of resort towns with incredible hotels and restaurants, but if you continue on you can see some real history. This area has tons of archaeological sites and guides that can take you. Chichen-Itza is one of the most breathtaking places I have ever seen on a Cancun vacation. The Mayan ruins are on an enormous scale but cut right out of the jungle.
Enjoy a Vacation in Mexico today!