Rock Islands and their limestone silhouettes in Koror
Published on 09/09/2026 at 13:54 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Rock Islands in Koror State form a scattered limestone landscape in a marine lagoon south of Babeldaob. The group includes the Rock Islands Southern Lagoon, a UNESCO World Heritage property inscribed in 2012.
Limestone islands in a sheltered lagoon
The most striking feature of Rock Islands is their profile: forested limestone islands rising from shallow water and reef edges. The World Heritage listing describes 445 uninhabited islands spread through a lagoon protected by a barrier reef.World Heritage listing
The islands sit within Koror State, immediately south of Palau’s main volcanic island, Babeldaob. That contrast between volcanic land and limestone islands gives the surrounding seascape its layered character.Koror State
Rock, reef and protected waters
The Rock Islands are part of a larger Palauan setting made from volcanic foundations and uplifted coral material. Geological descriptions identify them as ancient reef limestone, eroded into ridges, caves and narrow coves.ancient reef limestone
The same protected waters also contain channels, fringing reefs and barrier reefs, which shape the view across the lagoon. The formal site record gives the property a scale of 100,200 ha and places it in the southern lagoon of Palau.100,200 ha
Koror and the wider island setting
For travellers, Rock Islands are best understood as a seascape rather than a single island. The area belongs to the same archipelago that includes Koror, Malakal and the larger volcanic masses to the north and west.Koror and Malakal
Some islands in the southern lagoon also hold archaeological remains and rock art. That adds a human layer to a place best remembered for its limestone forms and reef-fringed water.rock art sites
Visiting Rock Islands: what travellers from Western Europe should know
- The Rock Islands lie in Koror State, south of Babeldaob. They are reached by boat across the lagoon from Koror and nearby islands.
- The terrain is maritime rather than mountainous. Expect limestone islets, reef shallows, channels and coastal rock forms, with landings shaped by water and shoreline.
- The official language is English and the currency is the US dollar. That combination matters for maps, signs and everyday transactions.
- Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.
Searching for Rock Islands on social platforms
These links open searches for Rock Islands on each platform.
Frequently asked questions about Rock Islands
Where are Rock Islands?
Rock Islands lie in Koror State, in Palau’s southern lagoon. They sit south of Babeldaob and form part of the wider island chain around Koror.
What does a visit involve?
A visit usually means moving by boat between limestone islets and reef waters. The landscape is marine, with landings, channels and low rocky shorelines rather than broad beaches.
What makes Rock Islands distinctive?
The place combines limestone islands, protected lagoon water and a UNESCO World Heritage designation. Its mixture of reef scenery, rock forms and archaeological traces gives it unusual depth.
