Cancún is a Mexican city located on the Yucatán Peninsula, bordering the Caribbean Sea. It is known for its beautiful beaches, numerous resorts, and nightlife. Cancún is a popular tourist destination, and is known for its warm weather, beautiful beaches, and lively nightlife. The city is also a popular destination for weddings and honeymoons. Cancún is a popular tourist destination for its warm weather, beautiful beaches, and lively nightlife. It has two main areas: El Centro, with historical and cultural attractions, and Zona Hotelera, with beaches, restaurants, bars, and nightclubs.