BB for sure! The 11 and 13 will loved it! The preteen beach patrol will keep them occupied for hours! For the 3 year old, there is a toddler beach area, really close to the preteen area. If the 3 year old wants to be with the older ones, get a life jacket when you rent a locker. They are free, just need to give them a room key or id card to "rent" it! With your help, the 3 year old can do the wave pool and some parts of the preteen area. When you rent a locker, ask for one in the preteen area. That way your locker will be smack between the kiddie area and the preteen one. Have fun!