DM Western Carribean Excursions Pre-Book?

[magicman]

We are newbies to the Disney Magic Western Carribean Cruise. Anyone have any suggestions for first time cruisers with 3 children, in particular should we pre-book the excursions we want to do in advance or should we wait to arrive at each port? We like to snorkle and are bringing our own equipment. Does it cost more to rent?
Your suggestions are appreciated! :)

[pvangordon]

I can't answer your detailed questions, but I would highly recommend you book ahead of time to get what you want. You can pre-book 60 days before your sailing and cancel up to two days ahead with no penalty. There's no deposit, so there's no reason not to book ahead. If you cancel within two days, they charge you the full excursion fare.