Other islands and island groups, which cover just 12.5% of the land area and house some 16% of the population, include Taveuni southeast off Vanua Levu and Kadavu Island, south off Viti Levu (the third and fourth largest islands respectively), the Mamanuca Group (just off Nadi) and Yasawa Group (to the north of the Mamanucas), which are popular tourist destinations, the Lomaiviti Group (just off Suva) with Levuka, the former capital and the only major town on any of the smaller islands, located on the island of Ovalau, and the remote Lau Group over the Koro Sea to the east near Tonga, from which it is separated by the Lakeba Passage.