Our 6 year old son is just learning to swim and is not a strong swimmer yet. We are thinking about getting him a swim vest. Will that suffice or is a life vest mandatory at Disney water parks if we want to ride the slides? I will be with him the entire time and knowing him, he will cling to me like a little monkey 
We are looking at the Speedo Swim Vest, a swim aide, not a flotation device. Thanks for your advice!

We are looking at the Speedo Swim Vest, a swim aide, not a flotation device. Thanks for your advice!