INLAND LAKESThere are lakes on the islands of Vava'u, Nomuka, Tofua, and Niuafo'ou, some of which have waters that are very good for swimming, but none of which are of significant size.
DID YOU KNOW?Because it is immediately west of the International Dateline, Tonga is the first nation to greet each new day, leading to the saying "Tonga is where time begins." Tourists flocked to the islands on December 31, 1999, to be among the first to greet the new millennium.
7 RIVERS AND WATERFALLSTonga has no rivers. The island of 'Eua has creeks, and there is a single stream on Niuatoputapu.
8 DESERTSThere are no deserts in Tonga.
9 FLAT AND ROLLING TERRAINHills rising to elevations between 152 and 305 kilometers (500 and 1,000 feet) are found on islands in the Vava'u group.
10 MOUNTAINS AND VOLCANOESTonga's highest point is on Kao Island, in the central Ha'apai group, at an altitude of 1,033 meters (3,389 feet). A volcanic ridge on the island of 'Eua, the second-largest island in the Tongatapu group, rises to 329 meters (1,078 feet).
11 CANYONS AND CAVESThe island of 'Eua, in the Tongatapu group, has numerous limestone caves and sinkholes, and there are also caves in the Ha'apai and Vava'u island groups.
12 PLATEAUS AND MONOLITHSTonga has no plateaus and no significant monoliths.
13 MAN-MADE FEATURESA mammoth thirteenth-century stone monument called the Ha'amonga'a Maui Trilithon is located at the easternmost end of the island of Tongatapu. There are also more than two dozen pyramid-shaped stone burial tombs on the island of Mu'a
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