http://www.beachyheadmarathon.co.uk/marathon.aspx
The Eastbourne Beachy Head Marathon is one the biggest off-road marathons in the UK. Formerly known as the Seven Sisters Marathon, it is popular for its scenic and challenging route through the South Downs National Park countryside. Great for runners, joggers or walkers looking to get fit. The 10k run will set off just after the marathon with a route comprising of breathtaking views and challenges.
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