Was that for the day? I'd hope they don't try to charge that per round.
Guerilla Golf is playing using whatever's available for a course and targets. For instance, we'll head to Chase Farm (near Lincoln Woods) and run our own course through the park. One hole may have a tree as a target, the next might be a small bush, or a telephone pole. It's nice for when you don't have time to drive out to a course. Chase Farm and Lincoln Woods are great for it. Walking around you can just see the holes in front of you.
That's awesome with the logo. I have a friend who started on one, but only did a rough draft so far. I don't think it's high on his priorities since he doesn't play.