Monica, Rachel, Pablo and Martin are taking part in Nathan's 2017 Discovery challenge on the 15th and 16th September.

On Day 1 they will be helping build a bike track at Woodrow High House which is a residential centre run by the London Youth charity. London Youth supports over 9000 young people and the track will be a great addition to their current facilities.

On Day 2 they will completing a 14 mile circular trek across parts of Buckinghamshire and they would all be grateful if you could sponsor them!