Parkland Walk, Finsbury Park to Highgate

2H7K0WP The Barbican Conservatory, the second largest conservatory in London, the Barbican Centre, London, UK.Mark Phillips / Alamy Stock Photo

A long-forgotten railway line has turned into a shaded walking path in North London, popular with trail runners and local dog walkers alike. It runs from Finsbury Park to Highgate, with old station platforms along the way. On rainy days, the terrain can be muddy and slippy but on a hot day, it's gloriously cool from the overhanging trees.