Farallon Islands

The Farallon Islands are a small archipelago off the coast of California, United States, notable for dense seabird colonies and significant marine wildlife. The islands lie about 27 miles (approximately 43 kilometres) west of San Francisco and are managed for conservation.

Visitors are not generally permitted to land because the islands are a protected wildlife refuge; boat or research trips operate under strict permits and many trips view the islands from sea. The islands support large breeding populations of seabirds and are also visited by seals, sea lions and large pelagic predators.

European and American authorities used the islands historically for lighthouse operations and limited human activity, but conservation status has dominated management since the mid-20th century. The group was designated as a national wildlife refuge and research access has been controlled to protect breeding seasons and habitat.

Geographically the archipelago consists of a main island with several satellite rocks and stacks in the Pacific Ocean off the central California coast, positioned west of the Golden Gate and outside San Francisco Bay.

• Distance & access: Located roughly 27 miles (about 43 kilometres) west of San Francisco and managed as the Farallon National Wildlife Refuge with strict access restrictions to protect wildlife.
• Wildlife: Important for seabird colonies and marine mammals; the islands are a major breeding site for species such as common murres and a known foraging area for great white sharks offshore.

What to See #

• Southeast Farallon Island: The Southeast Farallon Island is the largest island in the group and contains the main lighthouse and former research station; access is tightly controlled for conservation reasons.
• Satellite islets: Smaller rocky islets and stacks around the main island provide important nesting habitat for seabirds and haul-out sites for marine mammals, supporting dense colonies during breeding season.