大象传媒

The Sahara Desert is 3.6 million square miles in size, parts of it are nearly 600 feet high, the terrain is constantly changing and it's very hot, but that's not stopping Mark Spandler from taking on the challenge.

Mark, who lives in Devizes, will be running in what's been described as the toughest foot race on Earth - 150 miles across the Sahara Desert all in aid of local charity Julia's House.