General Nakar (Philippines), May 24 (EFEEPA).- (Camera: Sara Gómez Armas Francis Malasig).- With their calloused feet testifying to a lifetime of traversing rock-strewn mountain paths, Corita and Jesus Fortunato are familiar with every corner of a lush valley straddling the river Kaliwa, in the Philippines’ Sierra Madre mountain range, where they have lived since they were born – although they don’t exactly know when that happened.