From the longer Wikipedia page [1] The Parkland Walk is a 4.5-mile (7.2 km) linear green walkway, in the London Boroughs of Haringey and Islington, which follows the course of the railway line which used to run between Finsbury Park through Stroud Green, Crouch End, Highgate and Muswell Hill to Alexandra Palace. After the war the development plan was abandoned but passenger trains continued to run on this line until 1954. The service was reduced to freight haulage and tube traffic, until its final closure in 1970. The Friends of the Parkland Walk website is [2]