The Berkeley Marina is the westernmost portion of the city of Berkeley, California, located west of the Eastshore Freeway (Interstate 80 and 580) at the foot of University Avenue on San Francisco Bay. Narrowly speaking, "Berkeley Marina" refers only to the city marina, but in common usage, it applies more generally to the surrounding area. There are several restaurants, a hotel and a yacht club in the Berkeley Marina. There are also several walking and bicycle paths. The area is accessible from the rest of Berkeley by foot or bike over the Berkeley I-80 Bridge at the foot of Addison Street (one block south of University Avenue), and is traversed near Interstate 80 by a segment of the San Francisco Bay Trail. In addition, it is the western terminus of AC Transit Route 51B (University Avenue-Rockridge BART) on select trips only. The eastern-most portion of the Marina, running parallel to I-80/580, is now a part of the Eastshore State Park.