First open water, we got in all four strokes, a short swim, in and out a number of times. It is great to feel how much more comfortable the water is once you have been in for a few moments and returned, it doesn't seem nearly as cold the 8th time back in. 59 degrees, I think mid 60's is my comfort level.
A wonderful sensation, the tingling after you get out of the water. I have been trying to toughen up my feet by going bare foot more. I started out in March and short walks in the snow, frost, cold puddles, gravel. Coming out of the lake my whole body feels like my feet after a 5 minute walk in the snow. It is good to wake up in the spring.
And my pool membership ran out, so open water it is.