"Asan_Bay_Overlook" by NPS Photo , public domain
![]() | War in the PacificNational Historical Park - Guam |
The War in the Pacific National Historical Park is a protected area in the United States territory of Guam, in Apra Harbor, which was established in 1978 in honor of those who participated in the Pacific Theater of World War II. Various sites on the island of Guam are part of the Park. It is unique among the National Park System insofar as it honors the bravery and sacrifices of all those who participated in the Pacific Theater.
During World War II, Guam was captured by the Japanese forces in 1941 and liberated by the Americans in 1944. The park includes former battlefields, gun emplacements, trenches, caves, and historic structures.
Nations involved in the War in the Pacific include the United States, Japan, Australia, Canada, Mexico, China, France, Great Britain, New Zealand, the Netherlands, and the Soviet Union.
featured in
![]() | National Parks Pocket Maps | ![]() |
![]() | Hawaii Pocket Maps | ![]() |
location
maps

Official visitor map of War in the Pacific National Historical Park (NHP) in Guam. Published by the National Park Service (NPS).
brochures
Official brochure of War In The Pacific National Historical Park (NHP) in Guam. Published by the National Park Service (NPS).
Pacific Globe for War In The Pacific National Historical Park (NHP) in Guam. Published by the National Park Service (NPS).
Invasion Map for War In The Pacific National Historical Park (NHP) in Guam. Published by the National Park Service (NPS).
https://www.nps.gov/wapa/index.htm
https://en.wikipedia.org/wiki/War_in_the_Pacific_National_Historical_Park
The War in the Pacific National Historical Park is a protected area in the United States territory of Guam, in Apra Harbor, which was established in 1978 in honor of those who participated in the Pacific Theater of World War II. Various sites on the island of Guam are part of the Park. It is unique among the National Park System insofar as it honors the bravery and sacrifices of all those who participated in the Pacific Theater.
During World War II, Guam was captured by the Japanese forces in 1941 and liberated by the Americans in 1944. The park includes former battlefields, gun emplacements, trenches, caves, and historic structures.
Nations involved in the War in the Pacific include the United States, Japan, Australia, Canada, Mexico, China, France, Great Britain, New Zealand, the Netherlands, and the Soviet Union.
War in the Pacific National Historical Park was established to commemorate the bravery and sacrifice of those participating in the campaigns of the Pacific Theater of World War II and to conserve and interpret outstanding natural, scenic, and historic values and objects of the island of Guam.
From the airport or Tumon, where most hotels are located, make your way to Route 1, Marine Corps Drive. Head south until the road ends and you arrive at the Naval Station Guam front gate. To the right, adjacent to the large 2-man Type-C Japanese midget submarine, is the T. Stell Newman Visitor Center.
T. Stell Newman Visitor Center
T. Stell Newman Visitor Center is open on Tuesdays, Thursdays and Saturdays from 9 am to 4 pm
Asan Beach Overlook
Mountain view down toward beach.
Overlooking the invasion Asan Beach, this overlook honors the men and women killed on Guam in World War II.
Memorial Day Flag Honors at Asan Beach
Night view of light up US flags.
Honoring the Chamorro citizens and US service personnel killed during World War II.
Apaca point
Calm water beach at sunset.
This serene scene of Apaca Point does not reveal the intensity felt on the July 21, 1944 invasion.
NPS Geodiversity Atlas—War in the Pacific National Historical Park, Guam
Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports. [Site Under Development]
green slopes above seashore
Coral Bleaching Monitoring on Guam
In response to stresses such as higher water temperatures, corals can lose the symbiotic microscopic algae (which provides up to 95% of the coral’s nutrition) from their tissues causing them to look white or "bleached." If favorable conditions return, corals can sometimes recover. However, bleached corals are more vulnerable to disease and other stressors, which can lead to death. This worldwide trend of coral bleaching is linked to global warming.
A bleached coral documented in Guam during inventory and monitoring.
Relics of War at War in the Pacific National Historical Park
The safety of National Park Service (NPS) staff in the field is paramount, and dangers take many forms. When NPS Pacific Islands Inventory & Monitoring Network biological technicians came across a WWII era grenade in a vegetation monitoring plot they knew what to do.
A WWII era grenade discovered in the War in the Pacific National Historical Park.
Outside Science (inside parks): Youth Summer Programs in Guam
See how oung citizen scientists are helping monitor coral reef health in War In The Pacific National Historic Site.
youth pointing to coral
Outside Science (inside parks): Clam Monitoring in Guam
Follow along as scientists track the growth and health of giant clams War In The Pacific National Historic Site.
giant white clam
Outside Science (inside parks): Coral Bleaching in Guam
See how scientists are dealing with coral bleaching War In The Pacific National Historic Site.
stark white coral underwater
Climate Change Clues from Monitoring
As climate changes, significant changes in weather conditions impact the natural environment by shifting patterns of precipitation, promoting extremes in storm behavior, and influencing bird migration, invasive species spread, coral reef decline, and much more. The Pacific Island Network (PACN) undertakes systematic long-term monitoring of a wide variety of natural resources to accurately determine if change is occurring and why.
Precipitation seen over the lush valleys of Kalaupapa National Historical Park.
Stream Life in Hawai‘i National Parks
Changes in weather patterns affect the quantity and quality of the water, which has profound effects on our native stream animals. In the Hawaiian Islands, the total amount of rain is expected to decrease as the impacts of climate change manifest.
A stream cascading through green vegetation
POET Newsletter September 2012
Pacific Ocean Education Team (POET) newsletter from September 2012. Articles include: Sea Level Rise and Coastal Parks; Fun with Coral Reefs and Climate Change Education; and Climate Change Exhibits From Sea to Rising Sea.
people on beach
Guam in World War II
While Guam is only 212 square miles, the island is rich in history. Only hours after Pearl Harbor was attacked, the Japanese began aerial bombings on Guam. After two days of strafing, the Japanese came ashore and hours later the naval governor surrendered the American territory. The island remained under Japanese control for 31 months until July 21, 1944 when the United States returned and liberated the island.
Marines on Guam
Series: National Park Service Geodiversity Atlas
The servicewide Geodiversity Atlas provides information on <a href="https://www.nps.gov/subjects/geology/geoheritage-conservation.htm">geoheritage</a> and <a href="https://www.nps.gov/subjects/geology/geodiversity.htm">geodiversity</a> resources and values all across the National Park System to support science-based management and education. The <a href="https://www.nps.gov/orgs/1088/index.htm">NPS Geologic Resources Division</a> and many parks work with National and International <a href="https://www.nps.gov/subjects/geology/park-geology.htm">geoconservation</a> communities to ensure that NPS abiotic resources are managed using the highest standards and best practices available.
park scene mountains
Series: Pacific Ocean Education Team (POET) Newsletters
From 2009 to 2015, the Pacific Ocean Education Team published a series of short newsletters about the health of the ocean at various National Park Service sites in and around the Pacific Ocean. Topics covered included the 2010 tsunami, marine debris, sea star wasting disease, ocean acidification, and more.
Ocean waves wash in from the right onto a forested and rocky shoreline.
POET Newsletter September 2014
Pacific Ocean Education Team (POET) newsletter from September 2014. Articles include: Sea Star Wasting Disease; Corallivore: Crown of Thorns Starfish Wreak Havoc in American Samoa — The NPS Responds; Seafloor in 3D; and Coral Bleaching Monitoring on Guam.
A large, red-colored sunflower sea star that appears to be melting or disintegrating.
Cecilia “Chilang” Cruz Bamba
Cecilia Cruz Bamba was a Chamorro woman who was orphaned at the age of nine during the Japanese attacks on Guam in 1941. Motivated by the grandmother who raised her, Bamba became a senator, businesswoman, and community leader.
Photo of woman with short curly hair smiling
PT Boats of World War II: From Home Front to Battle
PT (Patrol, Torpedo) boats were small, fast, and expendable vessels for short range oceanic scouting, armed with torpedoes and machine guns for cutting enemy supply lines and harassing enemy forces. Forty-three PT squadrons, each with 12 boats were formed during World War II by the U.S. Navy. PT boat duty was very dangerous and the squadrons suffered an extremely high loss rate in the war.
About a dozen men, some shirtless, standing in small groups on deck of boat with flag and guns.
Submarines in World War II
Submarines played a critical role in the Allied success of World War II. Learn about American, German, and Japanese submarines in the Atlantic and Pacific theaters.
Photo of a long, narrow submarine above water, at a dock.
Series: Women's History in the Pacific West - Pacific Islands Collection
Women's biographies from Hawai'i and Guam
Map of parks in Hawaii, American Samoa, Guam and Northern Mariana Islands
Guam: A Biogeographic and Maritime Cultural Landscape Exploration of a WWII Amphibious Battlefield
From January 27-February 25, 2023, a team of researchers will begin their search for submerged shipwrecks, aircraft, amphibious vehicles, artillery and other artifacts related to the 1944 invasion of Guam during World War II (WWII).
Amtrac amphibious tractor is submerged beneath about 50 feet of water
Series: Using Science to Preserve the Past
Conserving our nation’s rich cultural heritage – the stories, places, traditions, and artifacts that make up the fabric of our shared history – is an important part of the NPS mission. Throughout the Pacific West Region, park archeologists and paleontologists, museum curators, historic preservationists, and more are using scientific practices to better steward the cultural resources they protect. Explore these articles to learn more about their work.
Museum object of cat-like nimravid skull with large incisors
Travel Blog: The Pacific Islands
Writing Prompt: Travel Blog written by Audrey Nelson for "A Day in the Life of a Fellow" Article Series. Audrey is a NPS Workforce Management Fellow, in partnership with Northwest Youth Corps
Map of the Pacific Islands
Intern Spotlight: Nia Crawford and Baylee Bales-Woods
Meet Community Volunteer Ambassador interns Nia Crawford, at National Mall and Memorial Parks and Baylee Bales-Woods at War in the Pacific National Historical Park.
Two headshots. On left, headshot of Nia Crawford. On right, headshot of Baylee Bales-Woods.
Outside Science (inside parks): Guam
Take a tour of Guam's waters off War In The Pacific National Historical Park! In this 3 part series, you'll follow researchers as they monitor clams and coral bleaching, and learn more about summer programs in the park.
youth divers point at a coral reef