Scripps Coastal Reserve, Natural reserve in La Jolla, United States.

Scripps Coastal Reserve is a protected area along the California coast that combines coastal wetlands, rocky shores, and expansive underwater zones. The site features elevated terrain with canyons as well as subaquatic sections that drop steeply toward submarine channels.

The University of California acquired the underwater section in 1929 to establish research areas for the institution. Expansion followed in 1967 with the purchase of the William Black House and surrounding land.

Scientists and students from Scripps Institution of Oceanography conduct research on coastal flora, fauna, and environmental preservation strategies in this location.

The mesa on the knoll is publicly accessible and can be reached on foot; trails also run through Black's Canyon. Sumner Canyon is privately owned but administered by the university. The reserve lies west of UC San Diego in the La Jolla Farms area, and its proximity to Black's Beach makes the route moderately frequented by tourists and surfers.

The reserve's aboveground knoll covers 46 acres and holds a publicly accessible mesa, while the 80-acre underwater and shoreline section is now part of the San Diego-Scripps Coastal Marine Conservation Area. Trails also pass through Black's Canyon and the privately owned, university-administered Sumner Canyon.