Hi Dan -
Thank you for visiting the Moms Panel with your question. Visiting Castaway Cay and enjoying the many family activities is a highlight on any Disney Cruise voyage. On our last cruise, we visited Castaway Cay and enjoyed the Stingray Adventure bundle package for the day. You've got a couple of choices since you can choose to do 1 activity, the
Castaway Ray's Stingray Adventure ($45/adult & $36/child), or you can do the 4-in-1
Extreme Getaway Package ($70/adult & $54/child). When you participate in the Stingray Adventure, it will include the snorkel gear to use while in the Stingray Lagoon. You'll learn a lot about stingrays and you'll get a chance to feed them too. Afterwards, you'll have about 30 minutes to actually swim and snorkel in the Stingray Lagoon to check out more of the stingrays. The snorkel gear that you use here is specifically for use in the Stingray Lagoon only. Upon exiting, a cast member will actually collect the snorkel gear from you so that you can enjoy the rest of the island.
If you'd like to snorkel around the Family Beach's snorkeling lagoon, you can either bring your own snorkel gear with you or you can
rent snorkel gear for the day at Gil's Fins. Snorkel gear will include the snorkel, fins, masks and the yellow vests which are required to be worn when out on the lagoon. There's a good number of sizes for the fins and there are also child and adult sizes available for masks. I hope this info is helpful.
Have a great voyage with Captain Mickey!
~ Dolly