Optional lunch 12.30pm in The Postal Order, Westow Street SE19 3RW (Wetherspoons). Leave the pub by 1.40pm to be on time for the walk which starts at 1.55pm outside Crystal Palace Station and ends at North Dulwich station. A pleasant GSWG walk that takes in Crystal Palace Park, a disused railway line and Dulwich Park. 4.5 miles, The walk is undulating and might be muddy. A stop for tea/coffee in Dulwich Park cafe.