Passion Island has a nice beach with toys for the kids. You get a nice lunch and they have alcoholic and non-alcoholic drinks as well.
The staff is friendly and the sand on the beach is nice and soft.
Check it out. I hve been there three times.
Carnival Liberty New Year's Eve 2007
Liberty of the Seas 5/2008+11/2009
Allure 1/16/ 2011
Independence of the Seas 12/29/2013 Top-notch!