We arrive 12/15 and have 5 kids 4-14. All swim but obviously the 4 and 6 year old have limited abilities and there will be times they should all be in them. So are there places to rent comfortable ones from for the week or should we bring them? And if bring them our kids are more used to a day on the boat so comfort not as critical so I would happily buy new ones if it made a difference. My preference is to rent each kid two so that one stays dry for just being on the boat. But that feels pretty risky because the first place I spoke to kids vest were just the cheap ones that will require more bribery to keep it on happily. Thanks y'all.