Approximate boundaries of the Red Triangle
The Red Triangle is the colloquial name of a roughly triangle-shaped region off the coast of northern California, extending from Bodega Bay, north of San Francisco, out slightly beyond the Farallon Islands, and down to the Big Sur region, south of Monterey. The area has a very large population of marine mammals, such as elephant seals, harbor seals, sea otters and sea lions, which are favored prey of great white sharks. Around thirty-eight percent of recorded great white shark attacks on humans in the United States have occurred within the Red Triangle—eleven percent of the worldwide total. The area encompasses the beaches of the heavily populated San Francisco Bay Area, and many people enjoy surfing, windsurfing, swimming and diving in these waters.