Hi there, Sue!
The
Pirates and Pals Fireworks Voyage (one of my favorite experiences at Walt Disney World!) does, in fact, require reservations to hold your place. It's a popular excursion, and I would hate for you to "miss the boat," so to speak, by not taking care of this in advance.
Pre-payment is required, but the cancellation policy on the Guest end is liberal - twenty-four hours in advance without penalty.
If Disney cancels the cruise at its discretion (particularly in the case of bad weather), you will be issued a full refund, no matter when the trip is cancelled.
To make your reservations, simply call (407) WDW-PLAY, and let the fun set sail!
Have a terrific time!
See you later, celebrator,
-Deborah B.