Safety vests at water parks & pools

[my2boys]

I was wondering if you are able to bring your own safety vests for the kids at the water parks or do you have to use the ones they have there. My son (4) uses a one piece get-up that is awesome for him and I was wondering if there are any restrictions for bringing your own. Also, wanted to know about at the resort pools? Any help is appreciated!

[NotUrsula]

You can bring your own, but it has to be a vest-type garment or the equivalent; something that is securely fastened on and will support the child's upper body. DS does not like the slick-surfaced foam loaner vests; we bring ours from home because it is a cloth-covered one. He does use the supplied vests for watercraft when he's fully dressed, but he prefers our own when swimming.