High School students from Rio Rico High School in Rio

High School students from Rio Rico High School in Rio Rico, Ariz., watch a BMX biker descend into a half-pipe during an extreme sports demonstration by the Action Sports Association at the school April 2, 2013. The ASA High School Tour, in partnership with the Campaign for Tobacco-Free Kids and the U.S. Marine Corps, brings the world's best action sports athletes to show students that it's cool to be tobacco-free. The ASA High School Tour features the world's top professional skateboarders, BMX riders and inline skaters performing mind-boggling aerial stunts on a state-of-the-art half-pipe in front of tens of thousands of students each year. For more photos visit Facebook.com/ArizonaMarines. (U.S. Marine Corps photo by Sgt. Tyler J. Bolken)