Taal Volcano is an active volcano on the island of Luzon in the Philippines. Located in Batangas Province, the Taal Volcano consists of an island in Lake Taal, which is situated within a caldera formed by an earlier very large eruption. It is about 50 km from the capital, Manila.
The TVPL has an elevation of 600 meters above sea level. The volcano is a complex cinder and tuff cones formed inside a large caldera, the main rock type of which is Olivine Basalt. The main crater lake of the volcano island is four (4) meters above sea level making the island one of the lowest and most active volcanoes in the world. The deepest point of the lake is approximately 172 meters.
The lake and its environs is home to many species of flora and fauna a number of which are endemic to the lake like the “Tawilis” (Sardinella tawilis), the only fresh water sardine in the world and the Taal Lake Seasnake (Hydrophis semperi or known to locals as Duhol), the only freshwater sea snake in the world. The snake still has salt glands to eliminate excess salt, despite being in a freshwater habitat. Other endemic forms include blue green algae, diatom, ostracod, sponge, reptile and fishes. There are many other species, which until now have yet to be documented, and whose natural histories have not been fully studied.