Open to the world's best runners and mass participants alike, this renowned event is the perfect opportunity for runners of all ages and abilities to run in the footsteps of champions in a World Championship race - and the Cardiff course is flat, fast and rich in potential for a new PB!
Push yourself to the limit by covering more than 480km in four days on this classic ride to the Eiffel Tower - then explore the city as you reflect on what you've achieved. Along the way you'll make new friends, see stunning scenery and be helping Macmillan improve the lives of people affected by cancer.
Yorkshire Cancer Research and Skydive Hibaldstow have teamed up to offer two exciting days of tandem parachuting which allows you to enjoy the thrill of freefall skydiving without any extensive training as you'll be harnessed to the front of a qualified parachuting instructor when you jump.
It's the world's most popular half marathon and you can be a part of it by running for children's charity I CAN. Book your place now for just £20 and you've then got nearly a year to raise the minimum sponsorship figure of £200, with full fundraising support throughout as well as training tips.
Your assignment - if you choose to accept it - is to conquer the Heron Tower, which is featured in Skyfall. You'll have unrivalled views of London from the glass-walled staircase at the City of London’s tallest building as you climb almost 1,000 stairs! Sign up for this sponsored stair climb now for just £25.
Be quick to snap up a place for Meningitis Now at this incredibly popular and world-class cycling event. It's a rare opportunity to ride 100 miles with 25,000 others on closed roads through the capital next July. A cycling jersey, drinks, catering, post-race reception and sports massage are all included.
This is an unmissable chance to explore the wall - you'll climb the heights of the Heavenly Ladder and see various sections over five days of trekking. Flights, accomodation and meals are included and you'll get access to a Facebook group to chat with trekkers before what should be a fantastic, life-affirming trip.
Take a look at this cycling challenge for 2016 - head from London and through beautiful English villages, across to Bruges then into the Dutch lowlands to finish in Amsterdam. You'll see canals, historic landmarks and much more and there'll be full support throughout including guides and mechanics.
Do something special by donning a personalised Children in Crisis running vest and taking part in one of the world's greatest marathons to aid some of the world’s most-vulnerable children in countries affected by war. You'll get free training sessions before as well as an exclusive post-race reception.
Challenges for charity come in all shapes and sizes and the links below should help you take the first steps to realising your goals. Walking, running and cycling are the three main categories - both in the UK and overseas - and we've also got plenty of more specific sections such as family-friendly challenges, women-only ones, team-building opportunities or challenges geared towards beginners.
Help with choosing a charity and tips for fundraising are also covered and once you've picked your challenge be sure to consult our team of experts who walk you through everything from the kit you'll need through to training plans and nutrition.
A selection of challenges which are ideally suited to a group or team.
Don't worry if this is your first charity challenge - we're here to help.
If you are searching for women-only options then check out these options.
Browse our charity listings to find the right one for your challenge.
An introduction pack which covers all the basics and gets you on your way.
The focus is on fitness training and technique for runners, cyclists and triathletes.
In-depth guides written by local experts on activities around the world.
Lots of handy tips and advice to help you reach your fundraising targets.
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Cycle 640 miles from London to Geneva, with a free day in Paris in the middle. Also take on the popular Col de la Faucille and the Jura Mountains for a tough but exhilarating trip.
The Dusk ‘till Dawn race will come down to the last man standing. How many times can you complete the Zombie infested course with a life tag intact?
Very challenging charity trek through forest and moorland to the snow-capped summit of the highest mountain in Africa (5896m).
Our testing trekking experience starts in the heart of London and finishes by the sea. Choose either a 100k or 50k trek and help us walk all over heart disease.
Short but very challenging route through the heart of the French Alps, tackling tough climbs made famous by the Tour de France and finishing on the renowned Alpe D’Huez.
No one should have to face cancer alone.
Information for charities about promoting challenge events on timeoutdoors.