Pacific Missile Range Facility
In 1928, Australian aviator Charles Kingsford Smith needed a runway long enough to lift his fuel-heavy aircraft for a nonstop flight to Fiji. He found it on a stretch of sand on Kauai's western coast that locals called Barking Sands, named for the peculiar sound the dunes made underfoot. That sandy strip would become one of the most important military testing facilities in the Pacific. Today, the Pacific Missile Range Facility sprawls across 2,385 acres of Kauai shoreline, commands more than 42,000 square miles of controlled airspace, and operates over 1,100 square miles of instrumented underwater range. It is the only facility in the world where submarines, surface ships, aircraft, and space vehicles can all be tracked simultaneously.
From Sugar Fields to Missile Shields
The land's military history began in 1940, when the U.S. Army acquired the Barking Sands area from the Kekaha Sugar Company, paved the runway, and named the facility Mana Airport. World War II brought heavy flight operations, and by 1954 the base had been designated Bonham Air Force Base. The Navy arrived in 1956 to test the Regulus I cruise missile, and within two years the growing demand for naval testing led to the formal establishment of the Pacific Missile Range Facility. In 1964, the entire installation was transferred to the Navy and given its current name. What makes PMRF irreplaceable is geography: Kauai's western coast faces nothing but open Pacific for thousands of miles, its tropical climate allows year-round operations, and the surrounding sugarcane fields -- later preserved through a deliberate agricultural initiative -- ensured that no incompatible development would crowd the range.
The Frigate Bird Test
PMRF's most dramatic moment came in 1962, during Operation Dominic. In a test codenamed Frigate Bird, the military launched an operational ballistic missile carrying a live nuclear warhead from a submarine positioned near the facility. The warhead flew toward Christmas Island, now known as Kiritimati, and detonated in an airburst at 11,000 feet. It remains the only American test in which a live nuclear warhead was launched on a ballistic missile and successfully detonated at its target. The test validated the entire Polaris weapons system, from submarine launch to warhead delivery, and it happened in the waters just off this quiet Hawaiian island. The contrast between the lush green ridges of Kauai visible from the facility and the destructive power being tested offshore captures something essential about PMRF: it exists precisely because of its isolation from everything else.
Hit to Kill
Modern testing at PMRF focuses on missile defense rather than nuclear weapons. The facility serves as the primary test site for two of the nation's most important defense programs: the Navy's Aegis Ballistic Missile Defense System and the Army's Terminal High Altitude Area Defense system, known as THAAD. Both programs rely on "hit to kill" technology, destroying incoming threats through direct kinetic impact rather than explosive warheads. THAAD relocated its testing operations from White Sands Missile Range in New Mexico and conducted its first demonstration at PMRF on January 26, 2007. Three months later, on April 27, the Aegis system achieved a milestone by intercepting two targets simultaneously -- a cruise missile and a short-range ballistic missile -- during a single test off Kauai's coast. When North Korea threatened to launch intercontinental ballistic missiles toward Hawaii in 2009, the military temporarily deployed a THAAD unit to the facility, underscoring that PMRF is not merely a test site but a strategic asset.
Neighbors by Design
The facility extends well beyond its shoreline footprint. Support operations run from Port Allen, Makaha Ridge, and Koke'e State Park. On the nearby island of Niihau, the military operates a surveillance radar, an 1,100-acre vehicle recovery site, and electronic warfare training courses. The base includes a 6,000-foot runway, roughly 70 housing units, and recreational facilities accessible only to authorized personnel. But PMRF's most unusual relationship is with the land next door. For decades, sugarcane fields surrounded the base, providing a natural buffer. When the Kekaha Sugar Company closed, the Navy grew concerned that residential or commercial development might encroach on operations. Rather than expanding the base, the Navy partnered with the State of Hawaii and Kauai County to permanently preserve roughly 6,000 adjacent acres for agricultural use -- a rare case of a military installation advocating for farmland preservation as a matter of national security.
From the Air
Located at 22.03N, 159.78W on Kauai's western coast. CAUTION: PMRF controls over 42,000 square miles of restricted airspace. The 6,000-foot runway (ICAO: PHBK) is visible along the coast north of Kekaha. Check NOTAMs for active restricted areas before approaching. Nearest civilian airport: Lihue Airport (PHLI) approximately 25 miles east. The facility is identifiable by its coastal runway and the open agricultural buffer zone surrounding it. Barking Sands Beach and the Na Pali Coast cliffs are visible to the north.