Introduction to the Rock Islands: The Rock Islands (Chelbacheb in local Palauan) consists of 250 to 300 islands. It is one of the top 10 most magnificent uninhabited islands in the world. "Survivor" Season 10 "Survivor: Palau" is famous. The Rock Islands are rich in biological species. The plant-covered limestone and coral rocks protrude about 207 meters from the sea. They also have many hidden lagoons and other lakes and are home to a range of unique creatures.