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We are Action Challenge...

Since 1999 we've been organising group challenges across the world and have helped to raise over £60 million for charities. We're based in London, and work in 30 countries in partnerships with the best local operators along with our own teams of experienced challenge leaders and event staff.

Whether it's a cycle to Paris for 250 riders, a group of 20 adventurers coming together to tackle Kilimanjaro, or over 3,000 challengers on foot setting out from London to Brighton - we're proud of the lengths we go to, to bring you experiences you cannot find elsewhere.

We organise high quailty challenges, trips and adventures for individuals to join our groups, and bespoke events for charities, companies, private groups & schools. What makes all our challenges unique is the way we encourage our groups to bond together as teams - and take on the challenge in front of them! 

something further afield?

Our other Ultra Challenges ...

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27/28 May '17

Capital to Coast - back for 6th year

Join 3000 others over the May Bank Holiday weekend. It's a Richmond start - 100km & 66% off road route. 2 Day, 1/2 and 1/4 Challenge options.

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26/27 Aug '17

South Downs Way - stunning scenery

An Eastbourne start, up Beachy Head, through Seven Sisters Park, along the South Downs Way, Brighton midpoint, and a finish line in historic Arundel.

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9/10 Sept '17

Take on the historic Thames Towpath

Beautiful & historic scenery. 100km Putney Bridge to Henley - 1/2 & 1/4 options. Also the Thames Bridges Trek; central London, 16 bridges - 25km.

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1/2 July '17

NEW - Rolling hills & fantastic views

From Bath it's 100km along the magical Cotswold Way with stunning views & villages enroute to Cheltenham. 1/2 & 1/4 options.

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Various '17

Overseas Adventures

2 marathon treks - 2 days in stunning scenery with our full support. Try the Sahara, Alpine trails or skirt the smokey summit of Mount Etna...

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Ultra Challenge Series Partners