The deputy chief constable of Avon and Somerset police is to complete a stage of the gruelling Tour de France.

Rob Beckley, a keen cyclist, has always wanted to take part in the Etape du Tour – when amateur cyclists are offered the chance to complete a stage of the world famous bike race – on one of the tour's rest days.

On July 20, he will join hundreds of others competing in the 172km (108 miles) Montelimar – Mont Ventoux stage, helping to raise cash for Weston Hospicecare at the same time.

The amateurs are expected to take up to two and half hours to complete the final ascent of the day up Mont Ventoux , affectionately known as the "giant of Provence".

The next day, the professionals competing in the actual race are expected to complete the climb in about an hour.

Mont Ventoux, which nestles on the edge of the Alps, is regarded as one of the toughest climbs on the Tour.

It is famed for strong winds and exposed limestone with no tree shelter, which can send temperatures soaring to 100F.

Mr Beckley said: "It has been a desire of mine to compete in the annual Etape du Tour for a number of years and this year my application was successful.

"To take part in the Mont Ventoux stage is a rare treat.

"It really does have special affection with cyclists all over the world because of its fearsome reputation."

While fulfilling a dream to scale one of the Tour de France's classic climbs, Rob will also be helping Weston Hospicecare and Bike4Africa

Rob said: "Both are local charities. One provides hospice care in the Weston area, and the other charity, which works from Bath, sends bicycles to Africa to help children get to school in remote areas."

Rob spent four years in aid work, mainly in Africa.

The hospice provides free palliative care to people in North Somerset and parts of Somerset with terminal illnesses. Fundraising and communications manager Penny Beare said: "We are grateful for Rob's support for Weston Hospicecare.

"Cycling the Etape du Tour is a huge physical challenge and we wish him the best of luck."