Christina, John, John and Niall - team LUST FOR LIFE - are undertaking the mountain biathlon that is the Corrieyairack Challenge. That's 17 miles over a mountain pass followed by 26 miles on a road bike. 

It's in aid of the Speyside trust, which helps disabled people enjoy outdoor holidays. 

We know times are tough, but even a small contribution will make a big difference to this worthwhile cause.