Sardinella tawilis is a freshwater sardine found exclusively in the Philippines. It is the only member of the genus Sardinella known to exist entirely in fresh water. Locally, they are known in Filipino as tawilis.
Sardinella tawilis
Bins of S. tawilis for sale at a Metro Manila supermarket
Taal Lake, formerly known as Bombón Lake, is a freshwater caldera lake in the province of Batangas, on the island of Luzon in the Philippines. The lake fills Taal Volcano, a large volcanic caldera formed by very large eruptions between 500,000 and 100,000 years ago.
Panoramic shot of Taal Lake and Volcano taken from Tagaytay in 2016