Mountain biking is a lot of fun. It's a great way to explore, stay in shape, and take awesome photos. I ride a Marin East Peak Quad XC 2008. In 2009, I participated in all 5 NorCal High School races:

Division: JV Boys 300s
Race 1, 3/1/09, East Garrison at Fort Ord: 22/40
Race 2, 3/15/09, Granite Bay Invitational, Folsom Lake: 22/42
Race 3, 4/5/09, Mountain Goat Challenge, Pilarcitos Canyon at Fort Ord: 17/38
Race 4, 4/26/09, Granite Bay Invitational II, Folsom Lake: 21/35
Race 5, 5/17/09, State Championships at Boggs Mtn., 23/40
Best NorCal Standing: 14/53; Final Overall Standing: 19/60
Final Team Overall Standing: 8/28

I had a great time racing in 2009, and I plan to participate again in the 2010 season, now as team captain.