We have never been to Cococay, but we have been to
Castaway Cay 7 times.
We loved it, they have a great BBQ for lunch, also a BBQ at the adult beach. There is a tram to take you to the adult beach and massage cabanas. Also a walking or biking trail there too.
I dont know what all they have for you to do at Cococay, but CC has a kids club area for organized events for the kids, a game room with pool, chip it golf, chess, checkers, shuffleboard, basketball hoops, a large sandbox, and more. On board the kids can make kites to fly at CC too. They have a special part of the beach where you can snorkel with plenty to see under the water, the family beach with a play structure in the water, a beach just for the teens, with volleyball. The teens have their own excursions they can take there too, that has hiking, kayaking, canoeing,biking ect... They have lots of water trikes, sailboats, and paddleboats too. Jet ski's for rent too.
Of course there are excursions to go fishing, parasailing, glass bottom boats, the wild banana boat rides and more. I'm sure you'd love either place. Both are beautiful tropical places, you cant do much better than that!!!
mom x, grandma x4