One word ... PARADISE.
Disney's Castaway Cay is a paradise and a MUST DO.
I got to ride the Pelican's Plunge slide several times while in the family beach.
Then, I spent the afternoon at the Serenity Bay, adult beach.
The food was incredible with steaks on the grill, burgers, mahi mahi on the grill, and so much more!
The stop at Castaway Cay was worth the cruise alone.