Early 2000’s hunting ducks on a big river late in the year out of a two man kayak with a buddy. Got dumped over in the river with no life jackets in full hunting gear and we had to swim to a bank. Didn’t drown but we were in bad shape and had to act quick. Knew of a guy not to far away so we had to swim across a slew to a boat and eventually got to the owner for him to get us out of there and keep us alive. Doesn’t take long for your body and mind to start shutting down in cold water and freezing air.