We knew little about the Philippines before we decided to go. From a bit of research we learned about the 2,000 year old UNESCO World Heritage listed rice terraces of Northern Luzon. Also, in this region are extensive cave systems, a number of tribal groups with their own distinctive languages and cultures, and nearby is the city of Vigan, Asia’s best preserved example of Spanish Colonial rule. We decided that Northern Luzon was worth a visit. Here’s what we found.