We were on Castaway Cay (Serenity Bay) in 2017. We didn't find it any different than past experiences. Yes, there are lifeguards, but they don't "yell at you" unless you're doing something you shouldn't. Jet skis are pretty far from the beach. And the part that's been blocked is actually pretty far out.Serenity Bay. The post was about the fact that it was no longer serene because of lifeguards, jet skis and blocking off part of the bay.