Applying long minutes about perspective I'd viewed on YouTube, I swam, sat on the east-side apron (concrete), and drew Wascana Pool. With lanes, roped area, ladders, and two of the 50 or so pool-dwellers present. A ladybug, baked bright orange, did about as well, except that after flopping about half-wounded, I don't get to fly off to safety.
My pool seemed to have no water in it. (Cross "ripples" off the list of what random smudging is good for, and "any sign of time of day" and "fibreglass slide" and "pale-turquoise-and-mauve sandals two feet away".)
I thought about executing the drawing wet, which I yet might try, if I could be sure it wouldn't screw up my sketchbook (what I used to call a notebook.)
The west side underwater was darker, I noticed. I scribbled tall trees. I sketched the apron edge, forgetting to aim for the vanishing point.
It was a mess. The lane lines weren't bad.