Ahoy, Kit!
Thanks for visiting the Disney Parks Moms Panel with your question!
When visiting Disney's amazing private island,
Castaway Cay, guests are more than welcome to bring their own personal snorkel gear. The Snorkeling Lagoon off the Family Beach is a great place to get some exercise while looking for underwater hidden Disney "treasures"! There are two different snorkeling trails to explore: the Discover Trail, for novices, and the Explorer Trail for more experienced snorkelers.
There's no charge to snorkel with your personal equipment, but all snorkelers will be required to wear a life vest in the lagoon. Life vests are provided free of charge, and are the type you can inflate to your comfort level. These bright yellow life vests can be picked up at
Gil's Fins and Boats or
Flippers and Floats, located on either end of the lagoon.
I hope this helps with your planning, and you're soon flipping your fins at Castaway Cay!
Have a magical day! - Diane W.