Lombok is an island in West Nusa Tenggara province, Indonesia. It forms part of the chain of the Lesser Sunda Islands, with the Lombok Strait separating it from Bali to the west and the Alas Strait between it and Sumbawa to the east. The provincial capital and largest city on the island is Mataram.
Located just east of Bali, Lombok is surrounded by a number of smaller islands locally called Gili. With beautiful beaches, enchanting waterfalls, the large, looming volcano of Mount Rinjani combined with relatively few tourists, Lombok is indeed the paradisiacal tropical island that many people still mistakenly imagine Bali to be now.
Lombok and Bali are separated by the Lombok Strait. It is also part of the bio-geographical boundary between the fauna of Indo-Malaysia and the distinctly different fauna of Australasia. The boundary is known as the Wallacean Line, after Alfred Russell Wallace who first remarked upon the striking difference between animals of Indo-Malaysia and those of Australasia and how abrupt the boundary was between the two biomes.