I used to snorkel the Campbell River with neoprene waders and a belt in conjunction with a old school padded life vest. It floated me just fine. Not as good as a full wet suit but I didn't have a fully wet suit and I was a lot tougher back them.
PVC chest waders OK
Neoprene waders are OK
PVC & Neoprene waders are OK
Take the waders off after launching boat
No waders in boat
I used to snorkel the Campbell River with neoprene waders and a belt in conjunction with a old school padded life vest. It floated me just fine. Not as good as a full wet suit but I didn't have a fully wet suit and I was a lot tougher back them.