Yes, get ready for the "un-belize-able" and "you betta belize-it" jokes! Its nice, we walked out and found our own tour, it was cool not the nicest of all the places we went too but its tropical so theres not too much to complain about. Your probably better off not exploring this one, the zipline/rappel will probably worth every penny.
Grand Cayman was awesome - my favorite. And we didnt get to got o Cozumel because of the docks that were wipped out (I think we went a week or two after that nasty hurricane)
Anyway, my bar bill on the boat cost more than my tickets lol, so I might have some things confused? :) Which is why an all inclusive in one location works best for me.
I recommend the Iberostar Paraiso Beach in the Mayan Riveria:
http://www.iberostar.com/EN/Riviera-May ... _3_72.html
I booked it a local travel agency, two people for 6 days $1500 (Round trip air fair for both of us included!!!). You don't need to bring a dollar with if you plan to hang around the resort. Drink and eat yourself silly! And the resort is huge, we never wanted to leave it as it is amazing!