Country
Australia and Oceania
Palau
Palau is a country of more than 300 islands in the Pacific Ocean. Many little green islands look like mushrooms. A coral reef surrounds most of them.
Palau is a country of about 340 coral and volcanic islands in the western Pacific, in Micronesia. A huge barrier reef surrounds most of them, and the Rock Islands, hundreds of green limestone islands in a turquoise lagoon, are a UNESCO World Heritage site. Palau became independent in 1994. Its 2025 census counted 16,491 people.
Palau (Belau) is an archipelago of some 340 islands on the Kyushu-Palau Ridge, most of them inside a lagoon enclosed by a barrier reef. Its Rock Islands Southern Lagoon, inscribed by UNESCO in 2012, holds 445 uplifted limestone islands and the highest concentration of marine lakes known. Formerly part of the UN Trust Territory of the Pacific Islands, Palau became sovereign on October 1, 1994, in free association with the United States. The 2025 census counted 16,491 people.
Photo: Charles J. Sharp, CC BY-SA 4.0, via Wikimedia Commons
Discover Palau
Palau is made of more than 300 islands.
A long coral reef goes around most of them. The bird in the photo is a Palau fruit dove.
Palau is a group of about 340 islands in the western Pacific Ocean, in the southwest corner of Micronesia. The Philippines are about 890 kilometers to the west and New Guinea about 650 kilometers to the south.
Palauan and English are the official languages, and Palau uses the United States dollar. The 2025 census counted 16,491 people. The bird in the photo is a Palau fruit dove, perched on a branch in the Rock Islands.
Palau consists of some 340 coral and volcanic islands on the Kyushu-Palau Ridge, with Guam about 1,330 km to the northeast, New Guinea 650 km to the south and the Philippines 890 km to the west. A barrier reef, continuous on the west and broken on the east, encircles most of the archipelago, and all but six islands lie inside its lagoon.
Palau's 2025 Census of Population and Housing, run by the Division of Planning and Statistics with help from the Pacific Community (SPC), counted 16,491 people living in Palau on census day, April 13, 2025. Palauan and English are official, and the US dollar is the currency. The photo shows a Palau fruit dove (Ptilinopus pelewensis) in the Rock Islands.
Koror, Babeldaob and Ngerulmud
Koror is Palau's biggest town.
The government buildings are at Ngerulmud, on the biggest island, Babeldaob.
Babeldaob is Palau's largest island. Since 2006 the capital has been in Melekeok, on Babeldaob, where the government buildings stand at a place called Ngerulmud. The photo shows the entrance to the Office of the President there.
Koror, just south of Babeldaob and joined to it by a bridge, is the largest town and the former capital. Koror is linked by causeway to Malakal Island, where Palau's deepwater port is.
Melekeok on Babeldaob (Babelthuap) became the capital in October 2006; its capitol complex stands at Ngerulmud. Koror, the largest population center and former capital, is joined to Babeldaob by a steel bridge and by causeways to Malakal, site of the deepwater port, and Arakabesan.
Other inhabited islands include Peleliu, the Kayangel Islands about 40 km north of Babeldaob and Angaur, 10 km south of Peleliu, which was heavily mined for phosphate first by the Germans and later by the Japanese. Sonsorol, Pulo Anna and Tobi, each under 2.6 km², lie about 290 km to the southwest.
The Rock Islands and the great lagoon
Palau has hundreds of small green islands called the Rock Islands.
Many are shaped like mushrooms. They sit in a turquoise lagoon. The photo shows reef islands in another Pacific country.
A barrier reef encloses a lagoon about 115 kilometers long. Babeldaob, the biggest island, is a volcanic island of rolling hills, grassland and jungle, with mangrove forests along its coast. Its highest point, Ngerchelchuus, is 242 meters.
South of it, more than 300 Rock Islands fill the lagoon. They are coral reefs pushed up out of the sea and deeply undercut at the waterline, and many look like green mushrooms. Some hold lakes of salty water, called marine lakes, linked to the sea by underground channels. It rains about 3,800 millimeters a year on Babeldaob. The photo shows Ulithi, a coral atoll in the Federated States of Micronesia.
The lagoon stretches almost 115 km northeast to southwest. Babeldaob (396 km²) is volcanic, mostly andesite, with three rivers and heavy erosion under about 3,800 mm of rain a year; Ngerchelchuus reaches 242 m. The Rock Islands are uplifted coralline limestone reef, deeply undercut at sea level; the largest rise about 180 m and some hold brackish lakes linked to the lagoon by subterranean channels.
UNESCO's Rock Islands Southern Lagoon (2012) covers 100,200 ha with 445 uninhabited islands, a reef system of over 385 coral species and the world's highest concentration of marine lakes, isolated bodies of seawater whose high endemism keeps yielding new species. The photo, taken for NOAA in 1992, shows Falalop and a second islet on the reef of Ulithi, an atoll in the Federated States of Micronesia, separated by a deep pass between ocean and lagoon.
Dugongs, sharks and fruit doves
Dugongs swim in Palau's sea.
Many kinds of sharks live there too. The bird in the big photo is a Palau fruit dove.
UNESCO says the Rock Islands area supports a great variety of plants, birds and sea life, including dugongs and at least 13 kinds of sharks. More than 385 kinds of coral grow on its reefs.
The Palau fruit dove in the main photo was photographed in the Rock Islands. The dugong in this photo was swimming near Marsa Alam, in Egypt.
UNESCO credits the Rock Islands Southern Lagoon with an exceptional variety of habitats in a small area: barrier and fringing reefs, channels, tunnels, caves, arches and marine lakes, sustaining dugong, at least thirteen shark species and over 385 corals, while the harsh limestone land supports numerous endemic and endangered species.
National Geographic (2017) describes bul, a traditional fishing ban that village chiefs declared when fish numbers fell, so stocks could recover. The dugong photo was taken near Marsa Alam, Egypt; the hero photo shows a Palau fruit dove (Ptilinopus pelewensis) in the Rock Islands.
Palauan life and the Palau Pledge
People in Palau speak Palauan and English.
Visitors to Palau sign a promise to the children of Palau to care for nature.
Palauan and English are both official languages. In 2017 National Geographic called tourism a main driver of Palau's economy, with visitors coming for coral atolls, the Rock Islands and Jellyfish Lake.
Since December 2017, every visitor gets a special stamp in their passport called the Palau Pledge, written as a promise to the children of Palau. Visitors sign it, vowing to 'tread lightly, act kindly and explore mindfully'. Palau also has an old custom called bul: long ago, when fish became scarce, village chiefs stopped fishing for a while so the fish could come back.
National Geographic reported in 2017 that visitors averaged almost seven times Palau's population, and that tourism is a primary driver of the economy. On December 7, 2017, Palau began stamping arriving passports with the Palau Pledge, a five-stanza vow to the youth of Palau that every visitor must sign, backed by an in-flight video and stronger enforcement of environmental laws. The Palau Visitors Authority said in April 2026 that every traveler entering Palau must still sign it.
Many of Palau's conservation efforts build on bul, a system of traditional resource management in which village chiefs halted fishing to let stocks replenish. UNESCO notes that Palauans still use the Rock Islands for cultural and recreational purposes under a traditional governance system that remains part of national identity.
Ancient villages to independence
People have lived on Palau's islands for thousands of years.
Later, other countries ruled Palau. In 1994 Palau became its own country.
People lived in the Rock Islands for some 3,000 years, leaving rock art, burial sites and stone villages. The villages were abandoned in the 1600s and 1700s, when people moved to larger islands. Spanish sailors visited the Caroline Islands, which include Palau, in the 1500s, and Spain colonized them in the 1800s.
Spain sold the islands to Germany after 1898, Japan took them in 1914, and after World War II they became part of a United Nations trust territory run by the United States. Palau became an independent country on October 1, 1994.
UNESCO describes the remains of stonework villages, burial sites and rock art in the Rock Islands as evidence of small island communities over some three millennia; the villages' abandonment in the 17th and 18th centuries shows the effects of climate change, population growth and subsistence on a marginal marine society.
Spanish navigators visited the Carolines in the 16th century, but Spain colonized them only in the 19th. They were sold to Germany after the 1898 Spanish-American War, seized by Japan in 1914 and held as a League of Nations mandate from 1919. The United States occupied them in World War II, and in 1947 Palau joined the UN Trust Territory of the Pacific Islands. After a compact of free association with the United States won approval in 1993, Palau became sovereign on October 1, 1994.
Palau on the map
Find the Philippines on the globe.
Move east across the sea. A small group of islands is Palau.
Find the Philippines, then move about 890 kilometers east across the sea. Palau's islands lie in a long lagoon, with Babeldaob in the north and the Rock Islands and Peleliu to the south. New Guinea is about 650 kilometers to the south.
Palau has no land borders. A few tiny islands, Sonsorol, Pulo Anna and Tobi, lie about 290 kilometers southwest of the main group.
Palau sits at the southwest corner of Micronesia, in the western Caroline Islands, about 1,330 km southwest of Guam. The Kayangel Islands to the north and Angaur, Sonsorol, Pulo Anna and Tobi to the south lie outside the barrier reef.
Britannica divides the Carolines into two types: in the east, coral caps on volcanic mountains; in the west, where Palau lies, sections of Earth's crust folded and pushed above the ocean.
- Islands
- about 340
- Distance to the Philippines
- about 890 km
- Ngerchelchuus (highest point)
- 242 m
- People (2025 census)
- 16,491
Amazing facts
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Visitors to Palau sign a promise to the children of Palau.
Since 2017, visitors sign the Palau Pledge in their passport, promising to 'tread lightly, act kindly and explore mindfully'.
The Palau Pledge, stamped in passports from December 7, 2017, is written as a five-stanza vow to the youth of Palau.
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Some of Palau's islands hide salty lakes inside them.
Palau's Rock Islands have the highest concentration of marine lakes, pools of seawater cut off by land, found anywhere.
UNESCO says the Rock Islands Southern Lagoon has the highest concentration of marine lakes anywhere, and their isolated life keeps yielding new species.
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Many Rock Islands look like green mushrooms.
Many of the Rock Islands have mushroom-like shapes, rising from turquoise lagoons ringed by coral reefs.
UNESCO notes that many of the 445 limestone Rock Islands display unique mushroom-like shapes in turquoise lagoons.
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Long ago, chiefs stopped fishing for a while so fish could grow back.
In the Palauan custom of bul, village chiefs banned fishing for a time when fish became scarce.
Bul, a traditional fishing ban declared by village chiefs, let fish stocks replenish and inspires Palau's conservation today.
Words to know
- barrier reef
- a long coral reef separated from the land by a lagoon
- lagoon
- shallow, calm water between a coast and a coral reef
- marine lake
- a body of seawater cut off from the ocean by land, linked to it only through underground channels
- limestone
- a rock made from the shells and skeletons of sea creatures, such as coral
- pledge
- a serious promise
- trust territory
- a land the United Nations placed under another country's care until it could govern itself
Discovery challenge
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What do visitors to Palau sign?
What do visitors sign when they arrive in Palau?
What has Palau required arriving visitors to sign since December 2017?
- A promise to care for nature
- A drawing of a fish
- A ticket for a boat race
Show the answer
A promise to care for nature
They promise the children of Palau to care for nature.
The Palau Pledge, a promise to the children of Palau.
The Palau Pledge, a vow to the youth of Palau stamped in each passport.
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What shape are many Rock Islands?
Many of Palau's Rock Islands are shaped like what?
Which shape does UNESCO use to describe many of Palau's limestone Rock Islands?
- Stars
- Mushrooms
- Squares
Show the answer
Mushrooms
Many look like mushrooms.
Mushrooms: they are deeply undercut at the waterline.
Mushroom-like, as UNESCO describes them.
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Which big sea animal lives in Palau's sea?
UNESCO names which large sea mammal among the Rock Islands' wildlife?
Which marine mammal does UNESCO list in the Rock Islands Southern Lagoon, alongside at least thirteen shark species?
- Polar bear
- Dugong
- Walrus
Show the answer
Dugong
Dugongs live in Palau's sea.
The dugong, along with at least 13 kinds of sharks.
The dugong.
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When did Palau become its own country?
In which year did Palau become an independent country?
In which year did Palau become sovereign, after its compact of free association was approved?
- 1947
- 1994
- 2012
Show the answer
1994
In 1994.
1994, on October 1.
October 1, 1994.
Places to discover in Palau
Animals of Palau
Explore next
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Natural wonder
Caroline Islands
The Caroline Islands are a widely scattered group of islands in the western Pacific Ocean, shared by the Federated States of Micronesia in the east and Palau in the west. They include low coral atolls, volcanic high islands and islands of raised limestone.
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Country Micronesia The Federated States of Micronesia is a country in the western Pacific made of four states: Yap, Chuuk, Pohnpei and Kosrae. Its islands range from high islands to low coral atolls, spread across about 2,800 kilometers of ocean. Off Pohnpei lie the stone ruins of Nan Madol, a World Heritage site. The 2023 census counted 75,817 people.
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Country Philippines The Philippines is an island country in Southeast Asia, in the western Pacific Ocean. It has more than 7,000 islands, about 50 volcanoes and rich coral reefs, and about 112.7 million people were counted there in 2024.
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Animal
Dugong
The dugong is a large, slow marine mammal that grazes on seagrass meadows in warm, shallow coastal seas from East Africa to the western Pacific. It is a relative of the manatee and, surprisingly, more closely related to elephants than to cows. It has a whale-like tail, a big bristly snout and very good hearing.
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Country Australia Australia is a country and the smallest continent, surrounded by ocean in the Southern Hemisphere. Much of its middle is dry and flat, most people live near the coast, and its animals include kangaroos, koalas and the platypus, a mammal that lays eggs.
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Country American Samoa American Samoa is a group of islands in the South Pacific, the eastern part of the Samoan islands. It is a territory of the United States, but most people are Samoan and follow the fa'asamoa, the Samoan way of life. Rainforest covers its steep volcanic mountains, coral reefs ring its shores, and the 2020 census counted 49,710 people.
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Country Christmas Island Christmas Island is an Australian territory in the Indian Ocean, south of Java. It is the top of an old volcanic mountain that rises from the sea floor, covered in rainforest. It is famous for the red crab migration, when millions of crabs march from the forest to the sea. About 1,889 people lived there in 2025.
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Country Cocos (Keeling) Islands The Cocos (Keeling) Islands are an Australian territory in the eastern Indian Ocean, made of two coral atolls. Most people are Cocos Malays who live on Home Island, and the land is so low that the highest point is only about 6 meters above the sea. The 2021 census counted 593 people.
For parents & teachers
What children will learn
- Locate Palau in Micronesia, east of the Philippines.
- Explain what a barrier reef, a lagoon and a marine lake are.
- Describe the Palau Pledge and the traditional fishing ban called bul.
- Outline Palau's history from Rock Islands villages to independence in 1994.
Recommended ages: 3 to 17 · About 15 minutes
Talk about it
- If you wrote a pledge for visitors to your town, what would you ask them to promise?
- Why might stopping fishing for a while help a reef?
- What makes an island shaped like a mushroom?
Try at home or in class
- Write and decorate your own 'pledge' card promising to care for a park or beach near you.
- Shape clay islands in a tray of water and use a cup to splash 'waves' at their base, then look at how the bottoms wear away.
Key vocabulary: barrier reef, lagoon, marine lake, limestone, pledge, trust territory
Where these facts come from
- Wikidata , Wikimedia Foundation (CC0 1.0)
- Natural Earth vector data , Natural Earth (NACIS) (Public domain)
- Palau , Encyclopaedia Britannica
- Caroline Islands , Encyclopaedia Britannica
- Rock Islands Southern Lagoon , UNESCO World Heritage Centre
- Palau Now Requires an 'Eco-Pledge' from All Visitors to Help Preserve the Land , National Geographic
- 2025 census of population and housing of the Republic of Palau: volume 1: basic tables , Republic of Palau Division of Planning and Statistics and the Pacific Community (SPC)
- Palau wins first place in the Marine Diving Awards 2025 (press release; includes About the Palau Pledge) , Palau Visitors Authority, via PR TIMES / Zaikei (Japanese)
- Ulithi Atoll , Encyclopaedia Britannica
- PlayOwl region table, version 1 , PlayOwl (PlayOwl original data)
- flag-icons 7.5.0 , Panayiotis Lipiridis and contributors (MIT)
- Wikimedia Commons , Wikimedia Foundation (Per file (public domain, CC0, CC BY or CC BY-SA); see each media record)
Checked, not yet human-reviewed. Last updated November 1, 2026. Spotted a mistake? Tell us.
Picture credits
- Photo: Charles J. Sharp, CC BY-SA 4.0, via Wikimedia Commons · source · license
- Photo: Zykasaa, CC BY 4.0, via Wikimedia Commons · source · license
- Photo: Mr. Ben Mieremet, Senior Advisor OSD, NOAA, public domain, via Wikimedia Commons · source
- Photo: Julien Willem, CC BY-SA 3.0, via Wikimedia Commons · source · license