Muddy Madness?

One of the participants in MoJo Active's  Annual Muddy Madness at 
Almondsbury , South Gloucestersire on his weary way through the treacherous obstacle course which includes muddy streams , muddy pools, muddy obstacles, Muddy path and muddy underground pipes. 

Did I mention it was muddy?

But everyone looked remarkable happy though challenged ( and muddy) from the runners to the volunteers of which I was one!!

This obstacle is an underground network of tunnels with a hatch to occasionally let light in if crawlers have been in too long ...