Challenge walks in the UK range from anything over half marathon distance (13+ miles / 20+ kilometres) right up to ultra challenges over either a single day, weekend or longer.
They could well involve some undulations but aren't geared around a summit target.
To refine your search, click + on the blue filters.
If you would like to do this as a group and there are more than 15 of you, we can help you find a reputable organiser to sort everything out.
Simply complete the form below and we'll be in touch shortly.
Want to list your challenges?Find out about advertising here
Sign up now & get the latest event updates in your Inbox every week!
Things to do in an urban environment - everything from city walks to traffic-free rides.
Events, challenges and trips aimed at those starting out, trying something new, or just looking for a fun day out.
Focus on upcoming new destinations and events - as well as many traditional favourites such as London to Paris.
Everything from mountain biking to trail running - and what's great about going off the radar to find your outdoor escape.
Everything you need to help you choose between Kilimanjaro, Everest base camp, the Great Wall, Machu Picchu and more.
16th July - 10km, sign up for £15
Insights from UK's finest off-roaders
28th May - just £15 to sign up
Swim-Bike-Run - three times the fun
June - limited to just 30 places
Suitable for all levels
Spectator friendly location - sign up for £50
The UK's leading altitude training facility
All-inclusive trip for 2 to Ontario
16th July - Bolton