Taal Volcano
Taal is an active stratovolcano located on the southwestern end of Luzon Island, Philippines. It has a crater lake at its center, and the entire 8.9-square-mile (23 sq. km) volcanic island lies within a larger caldera, also known as Taal Lake. Even its crater lake contains a small island, Vulcan Point, which is one of few "islands in a lake on an island in a lake on an island" in the world.
14.010000°, 120.997500°