It is a cold grey day by the sea and one of the twins from the 80's boyband Bros turns up in a sports car heading to the beach for his regular swim. I decide to go for a swim too - I haven't been for a while. The sea is too cold even for a Bros twin, and he goes into the swimming pool instead. I go downstairs into the basement to the changing rooms. They seem empty and waterlogged. "Is it open?" I ask one sleepy guy. He nods pointing to an unmanned cash desk.