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Rock Islands
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The Rock Islands of Palau, also known as Chelbacheb, are a striking collection of over 200 limestone islands scattered across a turquoise lagoon. These formations originated as ancient coral reefs that were uplifted from the ocean floor millions of years ago. Over time, wind, waves, and marine organisms eroded the bases of the islands, giving them their iconic mushroom-like appearance. Encompassing an area of 445 square kilometers, the islands were designated a UNESCO World Heritage site in 2012 for their outstanding natural beauty and cultural significance. A unique feature of the archipelago is its 13 isolated marine lakes, which are home to specialized species that have evolved in isolation from the surrounding ocean. The lively coral reefs surrounding the islands are among the most biodiverse on the planet, attracting divers and snorkelers from around the world. Historically, the islands also contain ruins of stone villages and ancient rock art, providing insight into the early Austronesian migrations and the rich heritage of the Palauan people.
- Location: Palau
- Top sights: Omekang Islands · Long Beach
- Nearby: Kloulklubed (12 km)
Best time to visit & climate
The most pleasant time to visit is Feb–Apr.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Rain mm | 216 | 198 | 184 | 177 | 285 | 338 | 381 | 286 | 275 | 232 | 236 | 257 |
📋 Practical info
Getting there
Exploring these fascinating limestone islands mandatorily requires joining guided boat expeditions. Koror serves as the central departure port for all tour operators.
Best season
Ideally, plan your excursions between February and April to enjoy the most favorable weather. Fierce summer winds can quickly force the cancellation of boat trips.
Terrain & paths
The characteristic mushroom-shaped islands rise steeply from the water and are densely forested. Most tourist activities are limited to swimming around the islands.
What to bring
A diving mask with a snorkel, waterproof shoes, and a wide hat for sun protection are highly recommended. A reusable water bottle is an absolute travel necessity.
Parking
You can effortlessly leave your vehicle at the well-equipped commercial marinas located in Koror. The town has all the necessary tourist facilities and shops.
Safety
Never underestimate the intense tropical sun reflecting off the water. Strictly follow the guides' rules to help preserve the incredibly sensitive marine ecosystem.
Time needed
Navigating through this sweeping island labyrinth usually takes up an entire day. Shorter tours often last three to four hours and cover only a tiny fraction.
Geography
Facts
- The region was inscribed as a UNESCO World Heritage site in 2012
- The entire protected area covers over 1,000 square kilometers
- There are more than 50 isolated marine lakes within the islands
- The islands consist of uplifted limestone of volcanic origin
- Over 380 coral species and 1,300 fish species inhabit the area
- Archaeological sites show evidence of human occupation over 3,000 years ago
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
Vehicle
Only stops with (optional):
© OpenStreetMap contributors · OpenRouteService
Sights in the town Rock Islands (2)
Sights nearby
Frequently asked questions
What makes the Rock Islands so special?
It is a collection of hundreds of limestone islands with wide-open lagoon landscapes.
What is the best way to visit the Rock Islands?
Daily boat tours from Koror are the most common way to see the main attractions.
Is there a National Park fee?
Yes, every visitor needs a 'Rock Islands Southern Lagoon' permit.
Are the islands accessible?
No, access requires boarding small boats and is physically demanding.
Can you visit the Jellyfish Lake?
Yes, Jellyfish Lake is part of the park, but requires a special permit.
Rock Islands: where is it located?
Rock Islands is located in Palau.
Rock Islands: what is there to see?
Highlights include Omekang Islands, Long Beach.
Rock Islands: when is the best time to visit?
The most pleasant time to visit is Feb, Apr.
Rock Islands: why is it worth visiting?
The Rock Islands of Palau, also known as Chelbacheb, are a striking collection of over 200 limestone islands scattered across a turquoise lagoon.
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Nearby cities
Koror
Koror is the most populous city in Palau and served as the national capital until 2006.
Koror Business District
This district forms the economic heart of Palau.
Airai
Airai is the second most populous settlement in Palau.
Meyuns
Meyuns is a significant village located on Ngerekebesang Island.
Kloulklubed
Kloulklubed is the main village on Peleliu Island.
Ulimang
Ulimang is the administrative center of Ngaraard State on Babeldaob.
Mengellang
Mengellang is the main village of Ngarchelong State at the northern tip of Babeldaob.
Ngerulmud Administrative Center
As the seat of government, Ngerulmud is the center for public spending and national administration.
Ngerulmud
Ngerulmud has been the capital of Palau since 2006.
Ngchesar
Ngchesar is a quiet settlement on the east coast of Babeldaob.
Melekeok
Melekeok is a village on the east coast of Babeldaob.
Aimeliik
Aimeliik is a settlement in southwestern Babeldaob.
Ngiwal
Ngiwal is a village in eastern Babeldaob.
Ngardmau
Ngardmau is a settlement on the west coast of Babeldaob.
Angaur
Angaur is the main settlement on the island of the same name in southern Palau.
History & landmarks
German Channel
This artificial channel was created during the German colonial period to allow the transport of phosphate from the southern lagoons.
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Ngerukewid Cliffs
These steep limestone walls rise vertically from the turquoise water.
Rock Islands (Chelbacheb)
The Rock Islands are an archipelago of limestone formations in the ocean.
Nature
Jellyfish Lake
An isolated marine lake on Eil Malk island.
Ngerukewid Islands (70 Islands)
A strictly protected wildlife preserve within the Rock Islands.
Carp Island Reserve
A crescent-shaped island with rich coral gardens and mangroves.
Ngerumekaol Spawning Channel
A critical habitat for groupers during their spawning season.
Ulong Island
Famous for its ancient rock paintings and rich flora.
Blue Corner
One of the world's most famous diving sites with immense fish density.
Bloody Nose Ridge
This rugged limestone ridge on Peleliu was a strategic point during World War II.
Malakal Peak
This hill on Malakal Island overlooks the most important harbor in Palau.
More places
Rock Islands Southern Lagoon
This UNESCO heritage site comprises hundreds of limestone islands.
Eil Malk Island
Eil Malk is the largest island in the Mecherchar group of the Rock Islands.
Peleliu South Harbor
Peleliu South Harbor is the island's logistical hub.
Ngeruktabel Stone Fort
On the uninhabited island of Ngeruktabel are remains of stone defensive works built before European contact.
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Ngeruktabel Island
Ngeruktabel is the second largest island in the Koror group of Palau.
Peleliu Island
Peleliu is a low-lying coral island in the southern Palau archipelago.
Peleliu Battlefield
This historic area preserves remains of the intense 1944 combat, including Japanese bunkers and American tanks.
Orange Beach
On this section of beach on Peleliu, the first US Marines landed on September 15, 1944, under heavy Japanese fire.