Balboa Island is a harborside community located in Newport Beach, California, accessible to the public via bridge, ferry and several public docks. The community is surrounded by a paved concrete boardwalk open to pedestrian traffic, designated as a public walking trail by the city.
Balboa Island's Marine Avenue is home to local small businesses including restaurants, bakeries and local crafts. The island also has a fire station and a post office.
The Balboa Island community consists of three modified or artificial islands in Newport Harbor: Balboa Island (33°36′23″N 117°53′40″W), the largest; the smaller Little Balboa Island (33°36′23″N 117°53′16″W) to the east of Balboa Island, joined by a two-lane bridge; and the smallest Collins Isle (33°36′31″N 117°54′1″W) to the northwest of Balboa Island, joined by a one-lane bridge. The Balboa Island community is joined to the mainland by a short two-lane bridge on the northeast of Balboa Island, and a privately operated fleet of three, three-car ferryboats (Balboa Island Ferry) which provide access across the harbor to the Balboa Peninsula which lies to the south.