Hi! We just signed up for the Oct.5th 4 night/Wonder cruise and can't wait... we will be taking our 2 sons (4 years & 1 year). We live in So. Cal with very strict public pool policies for babies, ie: babies must wear at least one or two plastic diaper pants with a swim suit (not disposable) to enter. Is this true on the cruise ships? or are babies not allowed to swim at all?! Does anyone know? Thanks!