It's not all just about the music at these festivals. 

Many fans at Firefly are enjoying some outdoor games between their favorite shows to bond with friends.

This year, Dogfish Head's "The Brewery" set up white garbage receptacles by the patio where folks can play life-size golf using a volleyball.

The game has proved popular. Festival-goers just pick up the volleyball and shoot it into the air to try to get it into the targets from a distance of about 10 feet. Silly, maybe -- but looks fun.

Not far away, others were trying their luck at corn hole. And of course, there is always the usual Frisbee game. 

It can't all just be about sitting on the lawn. Those calories from the beer and junk food have to be burned doing something, after all.