The Chilterns are the closest range of rolling hills to London that provide a getaway from the city (you can get a train to Princes Risborough where the route starts indeed from the city that makes it accessible to many budding FKT’ers!)

The Chilterns Hills are a beautiful part of the UK countryside - designated as an area of natural beauty - that are steeped in history (the famous Ridgeway Trail runs through this area), and offer some amazing trail running.