It's called hashing, informal hikes/runs through wooded, rural areas trying to stay on the scantily marked trail,laid out with flour or pieces of toilet paper. Trails can range from a few miles or over 10. The purpose? get to the cooler of beer at the end of the trail. It has its own language, "on-on" means someone has picked up the trail. Real names, called "Nerd names" are forbidden, hash names are used instead, usually something obscene. at the end, everyone circles up, drinks beer, eats and talks, obscenities fly and everyone has a good time.