Near above post code. Twickenham Embankment by Eel Pie Bridge.
Our traditional post-turkey jaunt. On/off road quiet route to Box Hill then a steady climb to the viewpoint and lunch in NT Cafe at the top (as the pub we used to patronise is now a trendy wine-bar). Enjoy a switchback descent taking us most of the way home. About 40 miles in total. Better bring lights but expect to get back before 4.
http://www.bikely.com/maps/bike-path/box-hill-28
In view of the wet weather recently I may go out by a main road route to avoid muddy tracks. Back by the advertised route.