John: Well we caught up with another enthusiastic lido swimmer, Callum. Did he have an answer? What reason could he give? What is the attraction of a lido today? I'm not quite sure what the attraction of lidos are, but they are incredibly popular. They are swarming with families, young children screaming and shouting, jumping and splashing in. It's slightly different from a swimming pool, in that people might take picnics there or whatever, so they are eating on the side, on the grass or on the concrete surround. It's a very different atmosphere because people aren't going there just to swim, they are going there for a relaxing afternoon, or to spend an afternoon in the sun and to have a chat with their friends, but there's also a swimming pool there. Feifei: OK, so I'm getting the picture now. If you go to a lido in London, then you are probably going for the social experience as much as for the exercise and health. Sounds quite a noisy experience, John. John: Yes, fairly, as Callum said, there's shouting, jumping, and splashing.