A 5K that you don’t need to train for, but a sense of humor is required: 32 before 32 | Longevity science | Scoop.it
From www.washingtonpost.com - November 13, 2012 2:08 PM

Glow in the dark 5Ks, moonlight bike rides and maybe, one day, rock climbing are the kind of fitness alternatives I’m finding myself drawn to. Exercise shouldn’t feel like a chore, and with options like these it sure as heck hasn’t been.