The lake used to have a rich fauna, but since 1970, biodiversity began to decline due to deterioration of water quality.

The third largest lake in the Philippines used to be the caldera of an ancient volcano.

Several large lakes used for boating and fishing also are located there.

A large natural or artificial lake used as a source of water supply.

The lake used to be the location of a mica mine.

The lake used to be rich in trout, lake trout and salmon.

The lake used to have a clarity of 8-9 meters in the 1930s.

The lake used to be a royal deer ranch for the Nanzhao Kingdom.

The lake used to be a sand quary.

The lake used to be a quiet fishing spot with a smattering of dedicated anglers.