Muscle Beach refers to either Muscle Beach Venice, an area in Venice, California, on Ocean Front Walk two blocks north of Venice Boulevard or to Original Muscle Beach, two miles north of Venice, south of the Santa Monica Pier

Santa Monica Pier

The Santa Monica Pier is a large double-jointed pier located at the foot of Colorado Avenue in Santa Monica, California and is a prominent, 100-year-old landmark.-Pacific Park:...

. These are named due the presence, at one time or another, of bodybuilding

Bodybuilding

Bodybuilding is a form of body modification involving intensive muscle hypertrophy. An individual who engages in this activity is referred to as a bodybuilder. In competitive and professional bodybuilding, bodybuilders display their physiques to a panel of judges, who assign points based on their...

 equipment at those places.
From the 1930s till the present the original Muscle Beach is located (34.0084425°N 118.494603°W) in Santa Monica

Santa Monica, California

Santa Monica is a beachfront city in western Los Angeles County, California, US. Situated on Santa Monica Bay, it is surrounded on three sides by the city of Los Angeles — Pacific Palisades on the northwest, Brentwood on the north, West Los Angeles on the northeast, Mar Vista on the east, and...

 immediately south of the Santa Monica Pier

Santa Monica Pier

The Santa Monica Pier is a large double-jointed pier located at the foot of Colorado Avenue in Santa Monica, California and is a prominent, 100-year-old landmark.-Pacific Park:...

.