Odessa Tumbali Cave in Peñablanca - Cagayan

On the fifth spot-Odessa Tumbali Cave in Peñablanca, Cagayan. At 12.6 kilometers, it is the third longest cave in the Philippines. It is active and provides excellent wet sport caving. It has superb formations and passage shapes, canals and lakes for swimming, photography and cave diving opportunities, and varied fauna. Acknowledged to be a perfect cave system, it has five known entrance