swimming 45:00 [2] 1.8 km (25:00 / km)
Figured the 4th was a good time to do a 1775 swim, except it's a long course pool, so rounded up to 1800. With my current level of fitness, this was just right as a challenge- kept swimming steadily, but not fast, and was just about done with the last lap when they blew the whistle.