South Devon is where the Coastal Trail Series was born - the cult classic is described as 'severe' by Endurancelife who organise the event and several other trail races throughout the year including the CTS Sussex trail and CTS Exmoor trails. The event sells out every year so be quick if you would like to take part!
This part of the UK is stunning - indeed, it is held within an Area of Outstanding Beauty. You can also take part in a less strenuous 10k or an ultra if you're feeling very brave! Like many trail races this is not one for the faint hearted and if you're a vertigo sufferer then you'll struggle with this one. Although the race is more expensive than many of it's rivals it is always full due to the impeccable organisation and beautiful surroundings.
A very tough but rewarding course. Held largely on coastal paths that give way to the rolling hills of the Devon countryside.