Mud... and lots of it. Azusa Canyon is an infamous OHV area for its very large mud pits that are deep enough to swallow a monster truck. Even though many people go out to this area in their Razors, 4x4, and quads to play in the dirt and hills, most people find themselves heading to the south end of the park to the mud pits where the action is always at. Saturdays in Azusa are rather quiet, but Sundays starting around noon get absolutely crazy.