Taal Lake is a freshwater lake in the province of Batangas, on the island of Luzon in the Philippines. The lake fills Taal Caldera, a large volcanic caldera formed by very large eruptions between 500,000 and 100,000 years ago. It is the country’s third largest lake after Laguna de Bay and Lake Lanao.
There is a crater lake on Volcano Island, which is the world’s largest lake on an island (Volcano Island) in a lake (Taal Lake) on an island (Luzon). Known as the Yellow Lake or the Main Crater Lake, it contains its own small island, Vulcan Point.