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North Downs Ultra Challenge
Explore the best of the Surrey Hills, the North Downs Way, and scenic countryside with 50km, 25km and 10km courses.
Events and Challenges
Welcome to the Allergy UK events pages. We’ve got a range of fundraising events to suit your abilities and budget! With limited spaces available, get your application forms in soon.
Gower Peninsula Ultra Challenge
A new Ultra Challenge for 2025, set in the stunning Gower Peninsula
South West Coast Ultra Challenge
Take on an Ultra Challenge along the stunning South West Coast. Choose your pace and distance!
London Summer Walk Ultra Challenge
Discover London’s hidden historic gems along the Thames, with scenic routes and iconic sights.
Thames London Moonlight Walk Ultra Challenge
Take on a 10km or 10 mile night walk through London’s heart, passing iconic landmarks.
Thames Bridges Trek Ultra Challenge
Trek across London, crossing 16 historic bridges with stunning skyline views, plus 10km and Moonlight walk options.