As a comparison, my mate did a Channel swim on the first swim tide of the season (early June), about 16 degrees. He's a big walrus of a guy and was in for 22 hrs. A friend who worked the lifeboats told us that for someone who'd fallen off a ferry (the greatest risk back then) they'd be looking for a body after 20 minutes.
On the topic of people risking drowning because life at Home is unbearable, I managed Swimmers on Netflix until the boat scene. I think it's good, probably too good for me to watch in December.
As a comparison, my mate did a Channel swim on the first swim tide of the season (early June), about 16 degrees. He's a big walrus of a guy and was in for 22 hrs. A friend who worked the lifeboats told us that for someone who'd fallen off a ferry (the greatest risk back then) they'd be looking for a body after 20 minutes.