I have never been in natural water this warm in my life! (However, after saying that Jason reminded me that I have been to quite a few hot springs, but let's not count those.) The people crewing the boat kept saying it was 27, degrees Celsius, and then everyone else on the boat complained about how cold that was. At the time all I could go by was the fact that it felt like bath water, and I knew that one year we did a Toronto Try-Tri in 19 and the Azores was 16. Looking it up online now, it seems that the super quick swim that Kristen, Noah, Jason and I did in the Indian Ocean near Durban in South Africa probably had water temperatures close 27, but it was very wavy and windy, so didn't feel that warm. I found a website that details sea temperatures around the world - so cool! The great lakes don't ever get much over 20.
Unrelated - Here is a bird photo inspired by Mom's Blog, which now even features bird pictures on her 'at home' posts. Jason and I did a short stroll along a boardwalk in The Everglades named after this bird. There were quite a few of them, some making quite the racket as they did mating displays. I preferred the quiet ones that just hung out on logs near the water. Saw one trying to eat a fish, that I think was way too big for it, greedy bugger.
An Anhinga in The Everglades
Photo by Jason, with his phone, April 2018