We have something similar here with the Great Lakes and how long it takes them to warm up in the summer. When we go camping we would often be amazed at how willing our friends kids were to swim in early June even though the water temp was quite low. They would scream and holler about how cold it was and then continue to spend several hours swimming anyway!
I reckon I did it as a kid too...something about the water and kids huh?
I'm probably not the best person to ask, I failed swimming class when I was a kid :)
Haha...I wasn't the best either, still not if I'm honest, but can swim enough to get me out of trouble. (I hope)
😀