Spirit Rock Meditation Center, commonly called Spirit Rock, is a meditation center in Woodacre, California. It focuses on the teachings of the Buddha as presented in the vipassana, or Insight Meditation, tradition. It was founded in 1987 as Insight Meditation West, and is visited by an estimated 40,000 people a year. The San Francisco Chronicle has called it one of "the Bay Area's best- known centers for Buddhist meditation."