I wrote this:
I started swimming a couple weeks ago as a way of relaxing / keeping fit in the morning. I've been going in about a half hour before I start working, so I only fit about 10 lengths in. Today I got in a bit earlier and when I got to 15, I realised that I'd swum about 750m. I realised that hey ... I could get to a thousand, and if I really wanted to, I could probably get up to 1.6k - the elusive mile! Well, it's surprising how easy those next 17 lengths came to me once I had that goal. A mile! There was something exciting about that last length, legs flailing, arms all over that place. Exciting, rewarding. A mile!