I don't know how long I can swim for, though I want to find that limit, the line were I can't possibly lift my arms out of the water. I imagine it would be somewhere around the two hour mark, though I'm really not sure. I should probably get a babysitter and try it out this summer.

Usually I try to swim for an hour, but I inevitably leave the house late, and miss out on the first 5-10 minutes of length swim's hour slot. But on Monday, after I showed up at my local only to have a sign saying it was closed, I frantically drove over to the next closest pool, and because I had a babysitter watching my kid, and knew I wouldn't get to a pool again all week (and had a head full of ideas and things I needed to think through), I swam for 65 minutes. It's not that long, but it was still longer than usual. I got into that meditative headspace I love so much, and stayed there for a good long while. 

It was one of the very best swims I've had all year.