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Rock Islands (Chelbacheb)
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The Rock Islands, locally known as Chelbacheb, are Palau's most iconic landmark and have been a UNESCO World Heritage site since 2012. This wide-open archipelago consists of over 200 emerald-green limestone islands that rise like mushrooms from the crystal-clear, turquoise waters of the Pacific. Their characteristic shapes were sculpted over millennia by tidal erosion and bioerosion at the waterline, which gradually undercut the limestone bases. Tucked away within these islands are numerous isolated marine lakes, the most famous being Jellyfish Lake. The underwater world surrounding the rocks has an incredible diversity of corals and marine life, making the region a premier global destination for diving and snorkeling. Beyond their natural splendor, the Rock Islands hold significant archaeological value, containing remains of ancient human settlements and rock art. Navigating through this labyrinth of verdant domes by boat provides spectacular vistas and an unparalleled encounter with one of nature’s most unique geological formations.
- Location: Palau
- Nearby: Meyuns (16 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 | 197 | 183 | 177 | 279 | 331 | 375 | 303 | 284 | 236 | 239 | 246 |
📋 Practical info
Visiting
The Rock Islands are best explored on guided boat tours that depart daily from Koror. Most islands are uninhabited and accessible only from the water, so you explore the memorable outer formations and beaches.
Typical hours
There are no official opening hours as the islands are a natural archipelago. Boat tours typically run from morning to late afternoon; low tide is convenient for viewing the mushroom shapes.
Photography
Photography is highly encouraged; the turquoise water and green limestone create spectacular contrasts. Drones may require a special permit, so check with your tour operator beforehand.
Time needed
A typical half-day tour of the southern lagoon and several islands lasts around four to six hours. For a full experience including Jellyfish Lake, plan an entire day.
Combine with
Combine the Rock Islands with a visit to Jellyfish Lake on a single tour, as many operators offer it. Stops at Long Beach or the Milky Way for a mud bath are also common.
Getting there
Access is exclusively by boat from Koror; most hotels can arrange a tour with pickup. The main departure point is the dock near the Palau Pacific Resort or the central boat basin.
Insider tip
Bring reef-safe sunscreen and a waterproof bag for your valuables. Snorkeling gear is often provided, but renting a wetsuit can protect against jellyfish stings during the season.
Geography
Facts
- UNESCO World Heritage since: 2012
- Number of islands: between 200 and 300
- Highest point: approximately 200 meters
- Feature: mushroom shape due to biological erosion
- Marine lakes: over 50 isolated saltwater lakes
- Location: south of Koror in the main lagoon
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 nearby
Frequently asked questions
How much time should I plan for a visit to the Rock Islands?
Plan for at least two full days to properly explore the islands.
Is diving allowed there?
Yes, it is one of the world's best diving areas, but a permit is required.
Are the islands suitable for families with children?
Very suitable, especially for snorkeling tours in shallow lagoons.
How do I get to the islands?
Access is possible exclusively by boat from Koror.
Do I need an entrance ticket?
Yes, the 'Rock Islands Southern Lagoon' pass is required for all visitors.
Rock Islands (Chelbacheb): where is it located?
Rock Islands (Chelbacheb) is located in Palau.
Rock Islands (Chelbacheb): when is the best time to visit?
The most pleasant time to visit is Feb, Apr.
Rock Islands (Chelbacheb): why is it worth visiting?
The Rock Islands, locally known as Chelbacheb, are Palau's most iconic landmark and have been a UNESCO World Heritage site since 2012.
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History & landmarks
🗺️
Ngerukewid Cliffs
These steep limestone walls rise vertically from the turquoise water.
German Channel
This artificial channel was created during the German colonial period to allow the transport of phosphate from the southern lagoons.
Palau National Stadium
The Palau National Stadium in Koror is the main venue for sporting events and national celebrations in the country.
Nature
Ulong Island
Famous for its ancient rock paintings and rich flora.
Ngerukewid Islands (70 Islands)
A strictly protected wildlife preserve within the Rock Islands.
Jellyfish Lake
An isolated marine lake on Eil Malk island.
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.
Malakal Peak
This hill on Malakal Island overlooks the most important harbor in Palau.
Ngerekebesang Hill
Ngerekebesang Hill is the highest elevation on Ngerekebesang Island.
Blue Corner
One of the world's most famous diving sites with immense fish density.
More places
Rock Islands
The Rock Islands are a collection of over 200 limestone islands in Palau.
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.
Ngeruktabel Stone Fort
On the uninhabited island of Ngeruktabel are remains of stone defensive works built before European contact.
🗺️
Ngeruktabel Island
Ngeruktabel is the second largest island in the Koror group of Palau.
Malakal Port
Malakal Port is the primary international maritime gateway for Palau.
Chelechol ra Orrak
This limestone cave on an island near Koror served as one of the earliest burial sites in the archipelago about 3,000 years ago.
Palau International Coral Reef Center
This center is dedicated to the research and protection of Palau's underwater world.