Since the first race in 2003, thousands of people have donned their gorilla suits and walked, run or jogged the 7km City of London route that takes in sights such as Tower Bridge and The Tate Modern.

If you like a challenge and agree that gorillas are amazing creatures, this is the event for you. By taking part you'll be playing a crucial role in helping save the remaining 700 mountain gorillas left in the wild.

http://www.greatgorillas.org