We went to Key West last Christmas just because we had never been there and wanted to dive for a couple of days mid week. The dive operations take turns going out if there only a few divers in town so I didn't have a choice who I went with. The diving is not great, very shallow, cloudy, flat sand bottom, teeny tiny coral but I don't regret going. It's fun experiencing different places. There was a lot of stuff to do after diving, nightlife, history, shopping, and eating. This year I'm going back to Key Largo the week before Christmas and will dive with Ocean Divers. They will take a boat out when 2 divers sign up. I've never been there during the summer but imagine those boats can be real tight, but in winter there are no crowds, just a few divers on the boat. There are a few great wreck, the Duane is my favorite. The reef is OK, nothing like the Carib, but well worth the trip. Hotels are pretty cheap at this time of the year, and easly to get to. Little over an hour from Miami. Besides Key Largo is a nice place to go for a couple of days to escape the cold Wisconsin winters.