Long-standing members will know that from time to time Jon Jolliffe offers guided trips around obscure corners of London's transport network. His latest itinerary will cover the two main corridors linking Croydon with the Thames. Starting at London Bridge station at 11:00 and finishing at Waterloo sometime after 5:00, for the price of a One-day Travelcard or equivalent we'll explore National Rail, TfL Overground, Tramlink and a bus ride or two. A certain amount of walking (no more than a kilometer at a stretch) and a pub lunch stop may well be involved. Anyone interested should get in touch with Jon at the TT office indicating which of the two dates is preferred.