Niue (/ˈnjuːeɪ/, /niːˈjuːeɪ/; Niuean: Niuē) is an island country in the South Pacific Ocean, 2,400 kilometres (1,500 mi) northeast of New Zealand. Niue's land area is about 261 square kilometres (101 sq mi) and its population, predominantly Polynesian, was about 1,600 in 2016. Niue is located in a triangle between Tonga, Samoa, and the Cook Islands. It is 604 kilometres northeast of Tonga. The island is commonly referred to as "The Rock", which comes from the traditional name "Rock of Polynesia". Niue is one of the world's largest coral islands. The terrain of the island has two noticeable levels. The higher level is made up of a limestone cliff running along the coast, with a plateau in the centre of the island reaching approximately 60 metres (200 feet) above sea level. The lower level i