Hi - we are headed to DLH for a few days in a couple of weeks - I was wondering are there any rules about kids using "bubbles" the belts that help them swim in the DLH pools? I figured it will make their time more fun and mine less anxious if they have them but I know some places do not allow any "flotation devices" - does anyone know. I know we used them at WDW without any problem. Thanks!