Funafuti is an atoll that forms the capital of the island nation of Tuvalu. It has a population of 4,492, making it the most populated atoll in the country. It is a narrow sweep of land between 20 and 400 metres wide, encircling a large lagoon 18 km long and 14 km wide, with 275 sq km—by far the largest lagoon in Tuvalu. The land area of the 33 islets aggregates to 2.4 sq km, less than one percent of the total area of the atoll.
Related goals for Tuvalu: