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Images shows a group of three walkers walking along a trail with other walkers in the distance. Green fields and trees line the trail. 'Chiltern 50 Challenge' is written on the top right of the image.

Chiltern 50 Challenge

This ‘end of season’ 50km looped route covers some of the best of the Chilterns countryside. You can walk, jog, or run along historic trails and over rolling hills. A half distance 25km challenge is also available.