A Saturday walk along the the Darent Valley path, starting where the river meets the Thames and ending at Sevenoaks station. My GPS recorded a touch over 20 miles (plus 3 extra miles if you start, as we did, at Dartford station). The part from Eynsford to Otford is very familiar territory, but it’s a lovely route, mostly in the country, almost the whole way.

Darent Valley path between Eynsford and Lullingstone