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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.

From isolation to exploration

During Loneliness Awareness Week, we're hosting a special webinar to address the challenges faced by individuals with sight loss when it comes to travel and mobility.

Our staff

We employ a number of full and part-time staff. Our office is in Buckingham.

Paris Marathon 2025

The Paris Marathon, which sees more than 60,000 people take part yearly, is the marathon with the second-most finishers in the world, behind the New York City Marathon. Fancy taking on an iconic race in aid of Retina UK? We’d love to hear from you.