Green Lake (Hawaiian: Ka Wai o Pele) was a freshwater crater lake in crater on the island of Hawaiʻi. With a surface area of 0.8 hectares (2.0 acres) and a maximum depth of 61 metres (200 ft), it was the largest natural freshwater lake in the Hawaiian Islands, and, along with Lake Waiau, was one of two freshwater lakes on Hawaiʻi Island. On June 2, 2018, the lake was destroyed when lava flowed from Kīlauea's lower Puna eruption boiled it away and completely filled the entire basin.