The Dollis Valley Greenwalk (or Green Walk) is a long distance footpath in the London Borough of Barnet between Moat Mount Nature Reserve in Mill Hill and Hampstead Heath. The route is designed to act as a link between the Capital Ring and the London Loop, and between the many green spaces and wildlife corridors along the way. It is approximately 10 miles (16 km) long It mainly follows the Dollis Brook, and is one of the many parks and open spaces in Barnet. More information on the Wikipedia page [1]