Nine demonstrators, including actor Woody Harrelson, were arrested Saturday after they scaled the Golden Gate Bridge to demand that the government protect a 60,000-acre redwood grove.

Hanging from rock-climbing gear, the protesters stretched out banners high above the roadway while bridge officials and California Highway Patrol officers waited for them below. Harrelson and the others dangled 200 feet above an all-day traffic jam that formed as motorists slowed to stare.

"I shamelessly and proudly call myself a tree hugger," Harrelson said via cellular phone before he and the others were arrested.

Everyone was booked on charges of trespassing, failure to obey a peace officer and public nuisance.