Cordell Bank National Marine Sanctuary

Cordell Bank National Marine Sanctuary is a protected ocean area off the California coast that covers an expansive marine zone. A granite rock formation rises dramatically from the seafloor, creating unique underwater habitats for diverse marine life.

Edward Cordell conducted the first detailed surveys of this ocean area in the 1800s, which improved navigation safety for ships traveling the region. The area was later designated as a sanctuary to protect its rich marine ecosystems from overexploitation.

The sanctuary functions as a working research center where scientists actively study marine life and monitor environmental changes. Visitors can witness this conservation work firsthand and appreciate why this ocean area matters so much.

Visiting requires taking a boat from nearby ports, and the journey typically takes several hours depending on where you depart from. Plan visits during warmer months when sea conditions are calmer and wildlife watching opportunities are most productive.

Deep coral gardens grow at significant depths, hosting over a hundred species of fish and supporting dozens of different seabird populations. These underwater gardens remain largely invisible to visitors but reveal the hidden richness directly below the water surface.

Location: territorial waters of the United States

Location: Exclusive economic zone of the United States

Inception: 1989

Operator: National Oceanic and Atmospheric Administration

Website: https://cordellbank.noaa.gov

GPS coordinates: 38.06659,-123.36779

Latest update: December 22, 2025 16:34