What is the largest island in Fiji?

Viti Levu is the biggest island in Fiji and houses more than 600,000 people. The Fijian capital is also found on the island. The island has developed into its present form through a series of geographical events where it was submerged in the sea and buried under massive amounts of lava and volcanic materials. Unique insects such as the Giant Fijian long-horned beetle are only found in this island.