Cozumel Diving
Cozumel is a highly-regarded dive destination for a reason. The diving is great, the value is fantastic, the travel time from the U.S. is short and there are hotels/resorts to fit every budget and style of travel. I've stayed at several resorts in Cozumel and the accommodations/food will (obviously) vary depending on trip budget. You can choose a resort with the bare essentials in the room and basic buffet dining, an exquisite room with multiple elegant dining restaurants or every combination in between. You can plan your trip depending on whether you'd like to party at a pool after morning dives, relax with a book on a quiet hammock or dive from morning into the night.
The diving is primarily drift diving, with the first dive at a deeper reef and the second at a shallower reef. With proper research you'll have attentive and safe guides who will point out marine life like eagle rays, turtles, nurse sharks, lobsters and even the endemic splendid toadfish. I can't wait to go back.