The Russian River, which has its mouth at the north end of Goat Rock Beach, is Sonoma County's biggest watercourse and river. Just north of the Russian River mouth is the small town of Jenner, and the beach, Jenner Beach. Goat Rock is at the south end of the beach. Visitors can walk onto Goat Rock, going on a small "isthmus", which is also known as a land bridge. Blind Beach is just south of Goat Rock Beach, with only Goat Rock between the two beaches, and Goat Beach is southwest of it.