Hi again, Bree! It's almost time for you to set sail! Hooray!
You're going to have such a great time on Castaway Cay and with
Castaway Ray's Stingray Adventure. Your best bet will be to hop off the tram at the first stop, which is the Scuttle's Cove stop. Scuttle's Cove is the Youth Club on the island, and it is run by the same counselors that your kids will be with in the Oceaneer's Club and Lab onboard the ship. Your little one will have so much fun at Scuttle's Cove for some wet and wild fun in the sand while you head off on your adventure.
When you first walk into your stateroom onboard the ship, you will find tickets waiting for you for each of your Port Adventures. These will list the specific meeting spots (sometimes onboard the ship, othertimes in the port area). On Castaway Cay, the Stingray adventure hut is near Gil's Fins and Boats, the spot where guests rent snorkel gear and tubes. It's close to Scuttle's Cove as you'll see on the Castaway Cay map.
I'd suggest grabbing some chairs near the center of the first section of Family Beach so that you are close to Scuttle's Cove, but also a bit further down so you can explore the other end of Family Beach. There will be activities all day long, including character dance parties, crab races and other fun events, so a spot there will keep you close to the action.
Have a wonderful cruise, Bree!