FORTY hardcore fitness enthusiasts were put through their paces as part of a gruelling cross-country challenge.
Members of Harpers Evolution (EVO) Boot Camp at Peterlee Leisure Centre got up to their necks in mud as they took part in the annual 10k Newcastle Stampede.
The course, at Newcastle Racecourse, saw thousands of participants stretched to their limit as they made their way round an obstacle course that includes mud, climbing nets and tyres.
The event is expected to have raised thousands of pounds for the British Heart Foundation.
Lee Kennedy, fitness manager at Peterlee Leisure Centre, said: “This was a fantastic fun event from start to finish and was enjoyed by all participants.
“We started out clean but after jumping the hay bails, crawling through muddy tunnels and wading through muddy water we soon got up to the eyes in thick mud but this certainly didn’t dampen the mood and spirit of the group.”
The centre’s contract manager Malcolm Grinstead said: “It is great to see our members enjoying themselves and having such a good time.
“This is what getting fit is all about, improving your health, trying new things and making some great friends at the same time.”
The Boot Camp takes place three times a week at the centre, on a Monday, Wednesday and Sunday and is suitable for all ages and levels of fitness.