We love any private island, but Castaway Cay, especially the adult side where we had rented a private cabana was sublime. We were there first (around 9am) and had the ENTIRE beach to ourselves for at least a good hour. Probably took others time to figure out how to get there! We hung out in the water, had an amazing lunch of rib eye steak (one of the best I've had in ages). Alright, it was SOO good I had three steaks over several hours, but hey, they were really thin. This day was the highlight of the trip. The Cabana was great to relax in, had free sunscreen, water, sodas, and they would pick you up in a golf cart to take you to lunch and wait to return you to the cabana to enjoy your lunch in your own space.