The Golden Gate Bridge is flanked by national park lands on both sides. Just beyond these lands lies another national park site that's underwater: the Greater Farallones National Marine Sanctuary, a globally significant, extraordinarily diverse, and productive marine ecosystem that supports abundant wildlife and valuable fisheries. It provides breeding and feeding grounds for at least twenty-five endangered or threatened species; 36 marine mammal species, including blue, gray, and humpback whales, harbor seals, elephant seals, Pacific white-sided dolphins, and one of the southernmost U.S. populations of threatened Steller sea lions; over a quarter-million breeding seabirds; and one of the most significant white shark populations on the planet.
You may want to check the tides before seeking this cache (or be prepared to either roll up your pants or time your sprint between the in-and-out of the tides!) Please walk mindfully around the native dune wildflowers and plants that make their home here.
The nearby free Visitor Center here is open Wednesday-Sunday 10 a.m. to 4 p.m.
One fifth of all harbor seals in California are born in the Greater Farallones National Marine Sanctuary!