First things first, I'm not a big party animal and I'm travelling solo so the beaches get a little dull, ergo, Cancun was never going to greatly appeal to me. That said, the beaches really are quite beautiful and I hear the party scene is impressive so its likelyideal for those with the beach/party holiday in mind. The good thing about Cancun for me is its accessibility to other destinations, notably Isla Mujeres, Chichen Itza, Playa Del Carmen & Tulum. As a hub, its in the perfect location.
Insider Tip:Take a ferry across to Isla Mujeres and stay @ Poc na hostel for a great beach party followed by far more chilled beaches across the island to ease the hangover. Alternatively, catch a collectivo to Playa del Carmen which is still a party town but a little more quaint. Wherever you are, take a tour to swim with the whale sharks, these huge, gentle creatures are a sight to behold, let alone swim alongside...well worth the $1,000 (Pesos, approx.).