Tattenham Corner was the only Zone 6 terminus station unvisited until May 2017. This is the view yards from the platform – a superb panorama from over 180m above SW London. Preparations for Derby Day (first Saturday in June)are under way. This used to be a major Cockney festival, and an unofficial bank holiday for the capital on the first Wednesday of June. The railway companies responded by building two branch lines to the course summit (Sutton to Epsom Downs, Purley to Tattenham Corner) in addition to the two lines to Epsom via Ewell East and West. Which is why the C25 has a plethora of routes over the Epsom Banstead and Ashtead Commons – the Spoke 5 system.