Naval Amphibious Base Coronado (NAB Coronado) is a US naval installation in
San Diego
San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
, California. The base, situated on
Silver Strand between
San Diego Bay and the Pacific Ocean, is a major
United States Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
shore command, supporting over 30 tenant commands, and is the West Coast focal point for
special and
expeditionary warfare
Expeditionary warfare is a military invasion of a foreign territory, especially away from established bases. Expeditionary forces were in part the antecedent of the modern concept of rapid deployment forces. Traditionally, expeditionary forces we ...
training and operations. The onbase population is 5,000 military personnel and 7,000 students and reservists. The base is one of the eight components of
Naval Base Coronado
Naval Base Coronado (NBC) is a consolidated Navy military base, installation encompassing eight military facilities in southern California, stretching from San Clemente Island, located 70 miles west of San Diego, to Mountain Warfare Training Camp ...
(NBC).
History

Formally commissioned in January 1944,
Naval Amphibious Base (NAB), Coronado provides a shore base for the operations, training, and support of naval amphibious units on the West Coast. It is one of only two Navy
amphibious training bases in the United States. NAB is approximately 1,000 acres (4 km
2) in size and is composed of the Main Base, training beaches,
California least tern preserve, recreational marina, enlisted family housing, and state park.
State Route 75 separates NAB into surfside (ocean) and bayside sections. The majority of the bayside is composed of fill materials dredged from San Diego Bay in the early 1940s. Amphibious training is conducted on both surfside and bayside beaches. To the south of the Main Base, the majority of amphibious training activities takes place on about of ocean beachfront property, leased from the State of California. A least tern nesting preserve is located on North and South Delta Beach between the NAB Marina and Main Base. NAB is located within the city of Coronado, California, a community of approximately 30,000. The city of Coronado covers nearly of land, and NAB lies south of the main residential and commercial portions of the city. Another naval facility, Naval Air Station (NAS)
North Island
The North Island ( , 'the fish of Māui', historically New Ulster) is one of the two main islands of New Zealand, islands of New Zealand, separated from the larger but less populous South Island by Cook Strait. With an area of , it is the List ...
, is located northwest of the city of Coronado. South of NAB is the
Silver Strand.
In June 1943, the
Secretary of the Navy
The Secretary of the Navy (SECNAV) is a statutory officer () and the head (chief executive officer) of the Department of the Navy, a military department within the United States Department of Defense. On March 25, 2025, John Phelan was confirm ...
authorized the establishment of the Amphibious Training Base in the San Diego area to meet wartimes demands for trained
landing craft
Landing craft are small and medium seagoing watercraft, such as boats and barges, used to convey a landing force (infantry and vehicles) from the sea to the shore during an amphibious assault. The term excludes landing ships, which are larger. ...
crews. These crews were deployed to the South Pacific area of operations, where their successful and historical efforts were contributory to the conclusion of World War II. Training for infantry coordination with naval artillery and attack aircraft was provided at the Naval Gunfire Liaison School and Support Air Control School. The streets of the base bear the names of those famous battles which led to the
Empire of Japan
The Empire of Japan, also known as the Japanese Empire or Imperial Japan, was the Japanese nation state that existed from the Meiji Restoration on January 3, 1868, until the Constitution of Japan took effect on May 3, 1947. From Japan–Kor ...
's defeat:
Guadalcanal
Guadalcanal (; indigenous name: ''Isatabu'') is the principal island in Guadalcanal Province of Solomon Islands, located in the southwestern Pacific Ocean, northeast of Australia. It is the largest island in the Solomons by area and the second- ...
,
Tarawa,
Tulagi
Tulagi, less commonly known as Tulaghi, is a small island in Solomon Islands, just off the south coast of Ngella Sule. The town of the same name on the island (pop. 1,750) was the capital of the British Solomon Islands Protectorate from 1896 t ...
, and
Bougainville, to name a few.
The base has also provided training for
Underwater Demolition Team
The Underwater Demolition Team (UDT), or frogmen, were amphibious units created by the United States Navy during World War II with specialized missions. They were predecessors of the Navy's current United States Navy SEAL, SEAL teams.
Their pri ...
s,
United States Navy SEALs
The United States Navy Sea, Air, and Land (SEAL) Teams, commonly known as Navy SEALs, are the United States Navy's primary special operations force and a component of the United States Naval Special Warfare Command. Among the SEALs' main func ...
,
brown-water Navy personnel, and
Naval Reserve Officers Training Corps midshipmen. In 1946, the base was renamed Naval Amphibious Base (NAB) Coronado and its primary mission was changed to that of providing major administrative and logistical support to the amphibious units which are located on the base. The base also conducts research and tests of newly developed amphibious equipment.
Current operations
NAB Coronado is the home to over 30 tenant commands with a population of approximately 5,000 personnel, including major commands such as
Commander, Naval Surface Forces Pacific (COMNAVSURFPAC), Commander
Naval Special Warfare (SPECWAR) Command and the Commander Expeditionary Warfare Training Group (EWTG) Pacific.
Major commands
*
Amphibious Construction Battalion One
*
Assault Craft Unit One
*
Beachmaster Unit One
*Expeditionary Warfare Training Group Pacific
*Explosive Ordnance Disposal Group One
**Explosive Ordnance Disposal Mobile Unit One
**Explosive Ordnance Disposal Mobile Unit Three
**Explosive Ordnance Disposal Operational Support Unit Seven (decommissioned)
*
Naval Special Warfare Command
**
Naval Special Warfare Center
*Commander, Naval Special Warfare Group One
**
SEAL Team One
**
SEAL Team Three
**
SEAL Team Five
**
SEAL Team Seven
*
Commander, Naval Special Warfare Group 11 (Navy Reserve)
** SEAL Team 17 (Navy Reserve)
** SEAL Team 18 (Navy Reserve)
*
Naval Special Warfare Group Three
*Special Boat Team 12
*Commander, Tactical Air Control Group One
**Tactical Air Control Squadron Eleven
**Tactical Air Control Squadron 1194 (Navy Reserve)
**Tactical Air Control Squadron Twelve
**Tactical Air Control Squadron 1294 (Navy Reserve)
*Naval Special Warfare Leadership Education and Development (NLEAD)
In the media

Buildings 320, 321, 322, and 323, at , have a
swastika
The swastika (卐 or 卍, ) is a symbol used in various Eurasian religions and cultures, as well as a few Indigenous peoples of Africa, African and Indigenous peoples of the Americas, American cultures. In the Western world, it is widely rec ...
-shaped plan view. This went unnoticed by the public from its construction in the 1960s until 2007 when it was spotted in aerial views on
Google Earth
Google Earth is a web mapping, web and computer program created by Google that renders a 3D computer graphics, 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposition, superimposing satelli ...
.
Although landscaping and architectural modifications were made to obscure the shape,
2025 imagery, the latest used by Google Earth, shows no substantive change.
Education
The housing on-post is in the
Coronado Unified School District, and the zones for Village Elementary School, Coronado Middle School, and
Coronado High School.
See also
*
California during World War II
References
External links
Commander Navy Installations Command - Naval Base Coronado Official Site
GlobalSecurity.org
Vietnam Unit Monument Memorial Wall, CoronadoLink to Google Maps location
{{Authority control
Amphibious Base Coronado
Military facilities in San Diego County, California
Military in San Diego
Coronado, California
San Diego Bay
Military installations established in 1944
1944 establishments in California