Underwater World Langkawi has over 200 marine and freshwater aquaria species such as sharks, giant rays, penguins, and harbor seals. Among Southeast Asia's largest marine and freshwater aquaria, this aquaria has three main sections - Tropical Rainforest, Temperate, and Sub-Antarctic. When visiting, catch sight of Amazonian arapaima, the biggest freshwater fish in the world and walk across an enormous underwater tunnel tank with six million litres of seawater. Other highlights at this 6-acres attraction include the Educational Resource Centre and three-dimensional (3D) theatre.
