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100km. A nice round number, but difficult to put into perspective.
It's 62.2 miles - the equivalent of walking nearly two and a half marathons back to back, or walking from Leeds to Scarborough non-stop.
It's tough, but with bags of determination and team spirit, you can do it.
Find out more in our free brochure
There are three Trailtrekker distances: Bronze (40km), Silver (65km) and Gold (100km), and it's completely up to you and your team which you go for. Whichever option you choose, it'll be a huge challenge - and one you won't forget anytime soon. We also offer a full support package, leaving you to focus on the walking while we worry about the logistics.
Explore some of the most spectacular scenery the Yorkshire Dales has to offer.
Time limit: 12 hours
Your team will need to push on into the evening to complete this 40 mile challenge.
Time limit: 22 hours
The full 100km challenge. The gruelling overnight section will test the toughest teams.
Time limit: 30 hours
Need a support crew? We can supply you with one for an extra £275 on your entry fee.
Welcome to the 100km events blog! Here we'll be talking everything Trailwalker and Trailtrekker, from training tips to event weekend round-ups. Great to have you aboard, and here's our kick off post:
100km Events Marketing Executive
Find out what you're in for.
What's provided before, during and after the event
Downloadable material to help you before, during and after the event.
How you are helping Oxfam save lives
Feeling inspired? Register your interest for Trailtrekker 2015
© 2014. Oxfam is a registered charity in England and Wales (no 202918) and Scotland (SC039042).
Oxfam GB is a member of the international confederation Oxfam.