Good to remember that even just somewhat colder water can be very, very dangerous. There were a four Soldiers in the Ranger School a number of years back that died down in Florida during the water/swamp phase of training at Eglin AFB. The water was just above 50° and the air temperature was above 60°, though they were in the water on the exercise for a considerable period of time, and transport to the hospital was delayed. Hypothermia can set in very, very quickly (seconds) in extremely cold water, cut can be insidious and “sneaky” in so-called warmer water as well. A person can become incapacitated before they’d ever expect to.
Great reminder – thanks MB. Sorry it had to be at your expense, but glad you got through it OK.