We were lucky enough to get a cabana on Castaway Cay. We ended up with cabana #17. The cabana included drinks, a few snacks (fruit and chips), towels, spray on sunscreen, sand toys, floats, snorkel rental, and a one hour bicycle rental. There was also a cast member there is to help with any needed. Everyone that is listed on the cabana is given a wristband that is delivered your stateroom.
It was nice to have a cabana but I feel like we missed a lot of the island had to offer. We wanted to really get the most use of the cabana that we never went and got the bicycles that were included and only one person went snorkeling. For us it was nice to do once but we would rather spend more time really getting to enjoy the island and all that it has to offer.
Path to Cabanas 
Cabana #17 
Inside Cabana 
Lounge chairs on deck
Safe and extra towels 
Towels 
Drinks and fruit 
Call button 
Sand toys 
Private hammock 
View from Cabana 
View of cabana beach 
Beach chairs 
Cabana #17