Island Guide


Discover how Sentosa was formed, and what creatures call it home at this new gallery at Sentosa Nature Discovery

Did you know that Sentosa wasn’t always an island? According to one scientific theory, the island was a lake bed submerged beneath a prehistoric lake called "Lake Sentosa" 200 million years ago.

Another theory suggests that Sentosa was formed from the erosion of ancient rivers.

Curious to find out more? Come join us at the new Geology Gallery where you can unlock the secret behind the formation of our island. 

Created in collaboration with NTU Asian School of the Environment (ASE) and Earth Observatory of Singapore (EOS), this new gallery located at the Sentosa Nature Discovery on Imbiah Lookout showcases earth processes and rock formation, geological map, coastal forests, rock samples and fossils. 

Come and experience the amazing geological formations on Singapore and Sentosa Islands while learning how important geology is for our day-to-day life!


In the very centre of the gallery is probably the most eye-catching feature of the room. A 3D topographic map of Sentosa is displayed in the middle of the gallery, showcasing the geographical locations and elevations of landforms and landmarks found within Sentosa island, such as Beach Station, Fort Siloso, and more. The map also houses multiple interactive elements for you to explore, which contain intriguing geological facts that visitors can learn about.

Scattered around the room are tables that display and talk about various flora, and even some fauna. These tables provide information and samples of some very peculiar plants, taking about where they originated, their idiosyncrasies, and their uses. 



One such plant is the ‘Dragon Blood Tree’, called such because it bleeds a red sap that is used for pain relief and wounds in traditional medicine. There are many of these fascinating facts  that are sure to fascinate those plant lovers out there.






The gallery provides an in-depth description of how Sentosa came to be. It explains how Sentosa as an island was developed, the type of rock and material that it constitutes of, and also explains the origins of some of the odd land formations that can be found around Sentosa. 

There’s also something in the gallery for visitors more into animals, as there are fun bits of info around the gallery that talk about fauna. From a ‘Nature Calendar’ to hidden creatures within the topological map, there’s bound to be something to learnt about animals in the Geology Gallery. 



The Geology Gallery provides visitors with an elaborate explanation of the geology of Earth, as well as geology as a concept. Come learn the workings of our world, such as the tectonic happenings of what occurs below our feet. 

Geology affects us in our everyday lives, even if we don’t know it. Anyone seeking insight into how our planet works above and below the surface, and the correlation in between, will find exactly what they’re looking for in the gallery. 

In the gallery, visitors can also learn about sustainability, and how Sentosa actively portrays this mission — the efficient use of resources and the preservation of the flora, fauna, as well as heritage. An example of this is Fort Siloso, Singapore’s only preserved fort. Preserving for the fort helps us to understand the island’s heritage and military past. We can learn more about what it takes to be a sustainable tourist location, the measures taken to support this, and the benefits from participating in such a practice at the Gallery.

Explore the world of geology, and how it played a part in Sentosa’s development. The Gallery is filled with a natural ambience, found within the jungle, the sound of birds and water fits right in.               


By William Loewen


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