Lake Lanoto'o

Lake Lanoto'o is a volcanic crater lake on the island of Upolu in Samoa. It is the largest lake in Samoa.[1] The lake is surrounded by Lake Lanoto'o National Park and is designated as a wetland of international importance under the Ramsar Convention.[2]

Lake Lanoto'o
Lake Lanoto'o
Lake Lanoto'o
Coordinates	13°54′36.72″S 171°49′39.73″W
Type	Crater lake
Catchment area	23 hectares (57 acres)
Max. length	400 metres (1,300 ft)
Surface area	11 hectares (27 acres)
Max. depth	17 metres (56 ft)
Surface elevation	760 metres (2,490 ft)

The lake is 400 metres (1,300 ft) long with a maximum depth of 17 metres (56 ft) and an area of 11 hectares,[3] with a water temperature of 27.8 °C (82.0 °F) and a pH of 5.72.[4] The crater is between 100,000 and 1 million years old.[3]

Sediment cores from the lake have been used to date the human settlement of Upolu[5] and of Polynesia,[3] and to study the paleoclimate and past ecology of Upolu.[6]

The lake provides an important habitat for the Pacific black duck and Spotless crake.[1] Goldfish were introduced during the German colonial period.[1]