Borneo Reef World is a large pontoon moored between Pulau Gaya and Sapi Island off KK City, catering for tourists looking for alternative island-based activities at sea. Floating above a coral reef, the platform can accommodate up to 500 people and is divided into an upper and lower deck, with an underwater observatory below four meters down the surface. Here, visitors can view colourful fishes and the ocean bed in good visibility depending on weather. Another popular activity is 'Sea Walking', where guests are strapped in oxygen-fed helmets and given free run along a platform 5 meters under water (supervised by divers). Finally, there's the usual snorkelling and buffet lunch on the platform.