Vandals face a $ 500 fine and up to six months imprisonment . Park rangers patrol more than 300 acres of a popular playground . The vast California park is battling rampant graffiti splashed across its rock formations .
Vandals face a $ 5,000 fine and up to six months imprisonment . Park rangers close more than 300 acres of a popular canyon . The vast California park is battling rampant graffiti splashed across its rock formations .