Go to the Beach
Perhaps the most popular thing to do when it comes to Cancun is going to the beach. Cancun's beaches boast soft, powdery white sand that slopes into the area's famous turquoise water. Cancun is home to what really amounts to one long, unbroken beach, divided only by a series of lagoons--perfect for adventurers seeking to explore the ocean and the coastline. Try snorkeling just off the beaches of Westin Regina or sunbathe off of the Bahia de Mujeres.
The Westin Regina Resort
Boulevard Kukulcan KM 20
Cancun, Quintana Roo, Mexico
+52 (998) 8487400
starwoodhotels.com
Bahia de Mujeres
Cancun, Quintana Roo, Mexico
Explore the Ruins
Hidden mostly away from beach, deep in the jungle, lie a number of impressive Mayan ruins. At one time, the Mayans were spread from modern-day Yucatan all the way to the Mexican states of Tabasco, Campeche and Chiapas, and into the countries of Guatemala, El Salvador, Honduras and Belize. Chichen Itza is a must-see, including its 75-foot high stone pyramid of Kukulkan and its famous Ball Court. Tours typically include both a walk-through of the major sites as well as free time to wander the jungles on your own. Consider, too, visiting the ruins of Tulum and Coba.
Cancun Vista Tours
Av. Coba #31, SM 22 MZ 13, Edificio
Monaco, Oficina #2
Cancun, Quintana Roo, Mexico
(800) 860-5917
cancunvista.com
Visit Xcaret Park
You might want to take a day or two to visit Xcaret, one of Cancun's most impressive nature parks. At Xcaret you can swim with sharks, lounge in natural pools, hang out in snorkel-friendly lagoons, swim underground rivers (or cenotes, famous in the area), swim with dolphins or go scuba diving. The park also offers theater shows, cultural performances that range in age from pre-hispanic to Spanish, a "living" Mayan village, and many other cultural and natural attractions.
Xcaret
Boulevard Kukulcan Km 9.5, Hotel Zone
Cancun, Mexico
+52 (998) 8830470
xcaret.com