SF-88 was established in the 1950s as part of the Nike air defense system that protected the San Francisco Bay Area from potential Soviet bomber attack. The site included a launcher area, where missiles were stored underground and raised on rails for firing, and a separate control area with radar and targeting equipment. The site was initially armed with Nike Ajax missiles and later upgraded to the more powerful Nike Hercules, which could carry a nuclear warhead -- meaning that the defense of San Francisco Bay potentially included detonating a nuclear weapon over the Pacific approaches to the Golden Gate.

After the Nike program was deactivated in the 1970s, most sites were demolished or abandoned. SF-88 was preserved by the National Park Service and restored by volunteers to its operational configuration. Visitors can tour the underground missile magazine, watch the launcher rails raise a missile to the surface, and examine the radar and control equipment that would have tracked incoming bombers. The restoration is remarkably complete, offering an immersive experience of Cold War military technology.

The juxtaposition of nuclear weapons and natural beauty at SF-88 is characteristic of the Marin Headlands, where military infrastructure and wilderness coexist in ways that seem almost surreal. The missile site sits on a fog-wrapped hilltop overlooking the Pacific, surrounded by hiking trails and raptor habitat. The warheads are gone, but the infrastructure remains -- a reminder that for several decades, the defense of San Francisco required the readiness to destroy incoming threats with weapons that could themselves cause catastrophic damage.