A man will brave one of the world's toughest races to raise money for the cancer charity which is caring for his father.

Robert Houston is hoping to raise thousands of pounds during the gruelling Marathon des Sables.

He will be among 700 competitors from 30 countries spending a week in April travelling 145 miles in six stages over seven days across the Sahara desert in Morocco.

Organisers of the annual event, now in its 18th year, will provide nine litres of water each day and an open-sided tent.

Mr Houston, 37, will have to carry his own food and gear through rocky plains, lake beds, sand dunes and small villages in daytime temperatures reaching 40C.

The conditions are a far cry from those in his home town of Horsham but he is confident he will do well.

He said: "I am really looking forward to running the marathon. I have been training in the gym six times a week and I am excited about taking part in the challenge.

"At times I am feeling apprehensive. However, I know it will be a tremendous experience.

"I have spoken to people who have done it before and they are confident I will be able to cope with the heat. I will be carrying out some intensive sauna sessions in the run up to the event which should help.

"I feel by raising awareness about pro-state cancer and supporting the cause, it will encourage the Government to put more money into research for prevention of cancer. That way we will not lose our fathers, brothers, husbands and friends so early to this illness."

Mr Houston's father Ian, 69, was diagnosed with cancer last year and the Prostate Cancer Charity has been providing him and his family with support.

The charity is the only organisation in the UK to focus on both support and information for prostate cancer patients and their families as well as research into the condition.

It has a confidential helpline, 0845 300 8383, operated by experienced nurses. Anyone interested in supporting Mr Houston can contact him on 01403 257776.