Sorsogon is on the southern most tip of Luzon in the Province of Sorsogon, where you can view the magestic Whale Sharks and dive in the Manta Bowl off Ticao island to get a glimpse of huge Manta Rays. The sheer size of the largest fish in the ocean will start your adrenalin pumping and drive you to such a high, that it will be days before you come back down.