Not long after my annual White Horse Challenge - a 52 mile, 2-day epic walk in the Wiltshire countryside on behalf of Wiltshire Air Ambulance - I will be attempting a 50K non-stop walk along the River Thames from Putney to Runnymead in Berkshire.

I will use the Thames Path Challenge 2015 to raise money for Fields of Life - a wonderful charity that build schools and brings clean drinking water to some of the most impoverished people in the world in East Africa.

If you are able to sponsor me for any amount, it would be really appreciated.