Welcome aboard, Susanne! Your Disney Fantasy cruise is coming up so soon! I bet you are getting very excited! The Fantasy is an absolutely stunning ship with so much to offer, you're sure to have a blast!
My family, too, is looking forward to our very first dolphin swim when we sail again with Disney later this year. The
Dolphin Extreme Swim & Turtle Farm Adventure is going to be such fun for your family, (or the Dolphin Encounter at the same spot, depending on which you've booked). As the information on this adventure's description notes, there are lockers available for your use while you are swimming with the dolphins.
Towels are usually available for every water-type Port Adventure in the adventure's meeting location on the ship, so plan to pick yours up at your meeting spot onboard and bring them with you on your adventure.
After you've enjoyed your swim with the dolphins, be sure to head across the street to experience the turtle farm. That was honestly one of my very favorite Port Adventures of all time. Being able to get in the tanks with the tiny sea turtles as well as watch the huge ones swim was just amazing. Enjoy every moment, Susanne!