Matthew will lead along a section of the Green Chain walk from Beckenham to Mottingham (Kent). Meet Beckenham Junc.tram stop 11:00 am (Matthew will leave East Croydon on tram about 10:30.) Walk passes through Beckenham Place Park,the Ravenbourne Valley, through quiet residential streets (20 min break in a park) then ancient Elmstead Woods to finish at The Tarn bird la,in Mottingham. Here is a good chippie or pub. Return by train from Mottingham via London Bridge.