From the 10th to the 13th of July I'm pushing my body to its limits and riding from London to Blois, in the Loire Valley, France, with 130 colleagues from across Saint-Gobain, to celebrate the Group's 350th anniversary (http://www.saint-gobain.co.uk/saint-gobain-350-years/).

IF I do make it to Blois, it will my 60th birthday, so it should be a memorable day!!

We'll be cycling over 100 miles (160 km) a day for four days. This is not going to be a comfortable summer jaunt. It is four hard days in the saddle and one that's going to require adherence to a rigorous training programme - one that will require sacrifices. The demands of four torturous back-to-back days means I'll need to be training most evenings and weekends in preparation.

We're raising money for Macmillan Cancer Support, a really worthwhile cause.

The legal bit: Donating through JustGiving is simple, fast and totally secure. Your details are safe with JustGiving – they’ll never sell them on or send unwanted emails. Once you donate, they’ll send your money directly to the charity. So it’s the most efficient way to donate – saving time and cutting costs for the charity