Kingston upon Thames - Berrylands - Malden Manor Distance: 6.5 km (4.1 miles) Max elevation: 36 m Total Ascent: 46 m Total Descent: 29 m Tracking points: 429 The Thames Down link connects The River Thames at Kingston through to the North Downs at Westhumble and Box Hill. Essentially a flat easygoing riverside and suburban path comprising of both pavement and compressed gravel tracks and covering a distance of 15 miles. This makes the walk achievable in one day but on this occ