Cancún, a Mexican city on the Yucatán Peninsula bordering the Caribbean Sea, is known for its beaches, numerous resorts and energetic nightlife. It’s composed of 2 distinct areas: the more traditional downtown area, El Centro, and Zona Hotelera, a long, beachfront strip of high-rise hotels, nightclubs, shops and restaurants. Cancun is also a famed destination for students during college’s spring break period.