I've committed to raise funds so that kids around the world can get to experience the joy of sport, as my own kids and their friends and family have been fortunate enough to do. 

They support more than 160 sports-based community programmes in over 40 countries, believing that “sport has the power to change the world”, as a powerful and cost-effective tool to help children reduce stigma and build resilience in the face of difficulties in their lives.

So we're doing 100km of trekking in just four days, across the South Island of New Zealand. And I'm aiming to raise £10,000 to go to the charity. Can you help?