Black Dragon Challenge

This one’s for the fell runners among you (though it is officially designated a walk). The chances are you’re very fit indeed if you sign up on the spur of the moment. And you’ll need to be, as it’s 25 miles across the top of the Black Mountains in Wales, and you’re expected to self-navigate while also knocking off the small matter of 2,260m of ascent along the way. April 8, Crickhowell, Powys, challengewalks.org.uk