The Surrey Circumnavigation is an approximately 337km/209 mile route around the UK country of Surrey.  The route can start anywhere and must follow as closely to the Surrey county border as possible without crossing over the border.

Dollis Valley Greenwalk is a 10-mile riverside route from Mill Hill to the northern fringes of Hampstead Heath linking areas of public open space along the valley of the Dollis Brook, a tributary of the Brent, that rises near Arkley. It passes through Moat Mount Nature Reserve, Barnet Gate Wood, an ice age forest remnant, Totteridge Fields, and under Mill Hill viaduct.

Most of the route is moderately flat and surfaced