Thousands of teens take part in Ten Tors Challenge
BBCThousands of teenagers are taking part in the Ten Tors Challenge.
Four-hundred-and-forty teams from Devon, Cornwall and further afield arrived at Okehampton Camp, on Dartmoor, on Friday where they pitched tents and finalised their routes.
Three challenges take place across the weekend, where teams of six self-navigate routes of either 35, 45 or 55 miles, depending on their age, over the northern half of the moor.
Teams left the camp early on Saturday, and director of Ten Tors, Col Jim Bird, wished all of the participants the best of luck and said kit preparation was key to their success.

Bird said many people hold the event "close to their heart" and stressed the importance of training months in advance.
Ten Tors organiser Lieutenant Col Tim Gilbert, who has been involved in the event for about seven years, said the challenge was all about teamwork and rising to the challenge.
He said it also offered a "really good lesson and experience" for the young participants as they do it on their own, on the moor and push themselves hour after hour.
"You can't develop that in the classroom or anywhere else," Gilbert said.
He said teams needed to be prepared for whatever the weather was going to be, which is unpredictable on Dartmoor.
