But that's the point, there's really not much for you to do but be in or on the water except relax. If you have access to a boat, and make this a diving/fishing week, then the schedule is pretty easy. Wake up, go dive, bottom fish during the SIT time (because you located a good location while you were diving and marked it), and dive again, troll around during the next SIT for some dolphin, go dive again, and then go back and get something to eat, go back out and dive again, and then troll around for more dolphin and dive again. Sunset, make another dive, and then go back to your place, clean/cook the dolphon, snapper, and grouper and don't forget the lobster, have dinner and a drink and listen to the tarpon rolling. If you have a place on the water, go out on the dock and cast a heavy line out with a live bait and see what bites.
Go snorkel Bahia Honda for a day, and do the Key West thing for a day (and night). Stop by the Peek-a-boo lounge and tell Amanda I said Hi! <I'm sure she doesn't still work there, and if she does, she shouldn't be> Never mind... I think I owe her money anyway.. Forget going here...
If you're in Key West, and plan for the extra time, try to schedule a day in the Dry Tortugas. It's a whole day.
Key Largo, Marathon, and Key West are the only ones with much of anything, and Marathon is geared more for fishing.
You can go up to Islamorada to Robbies and hand feed tarpon, but after a 1/2 hour and $10.00, you're finished with that. You can go all the way down to Shark Cut and snorkel the bridge, and see all the nurse sharks.
I seem to remember a bowling alley somewhere around but I was probably halucenating (which is entirely possible). Come to think of it, I think the bowling alley was in Dover-Foxcroft, Maine; another great vacation spot with absolutely nothing to do but relax. Never mind about the bowling alley <laff>
Although you need a watch for diving, you shouldn't use it down there for anything else. Just put it in your dive bag along with your gear. Relax, forget about the rest of the world. No phone, no pager, no computers, no nothing! I don't even turn on a TV while I'm down there.
Fish....Dive...Hunt....Eat....Fish....Dive...Hunt....Eat....Fish...Sleep... Repeat as necessary
-=V=-