On the NYC subway in Queens, New York while on a day trip, I spotted two people beaming. One was wearing a light layer of mud from head to toe. From reading the imprinted message on their tee shirts it was obvious that they had just participated in a Dirty Girl Run. 

I asked them about it. One openly shared her experiences with the obstacle course and explained that the hose for rinsing off had low pressure and wasn't very helpful for cleaning up.  Their debrief was authentic, intriguing...