Join thousands of others who have already pledged to make a journey by foot, bike or public transport that combined will take us around the world by 4 July.
So far, we're nearly a quarter of the way round but we still have another 17,000 miles to go. Your journey could make all the difference so take up the challenge now.
By pledging a journey, you'll be showing your support for smarter ways to travel. Once you've made your pledge we'll let you know how you can get your local elected representative to do their bit too.
Pledge your journey now to be in with a chance of wining great prizes from Center Parcs, Riverford and Lush
What's it all about?