Wednesday is my middle-aged triathlon: I cycle to the park, do Tai Chi, and swim ten lengths of the pool. This morning, as I arrived at the Lido, I met a man who remembers it being built, in 1934.
As a boy he had mixed feelings, because the Lido was built on the best football pitch, - the flattest part of Brockwell Park. He changed his mind later, when mixed bathing came in - first introduced in Peckham Rye Lido, apparently - and you could see girls in their swimming costumes.
Last week I was sharing the pool with two ducks. This week it was a bit busier.