In 1591, when the Spanish conquistadors had Manila more or less under their control, they began looking for new sites to conquer. Legaspi's grandson, Juan De Salcedo, volunteered to lead one of these expeditions. Together with 8 armed boats and 45 men, the 22 year old voyager headed north. On June 13, 1572, Salcedo and his men landed in Vigan and then proceeded towards Laoag, Currimao and Badoc. As they sailed along the coast, they were surprised to see numerous sheltered coves ("looc") where the locals lived in harmony. As a result, they named the region "Ylocos" and its people "Ylocanos".

Towns 22 - Adams, Bacarra, Badoc, Bangui, Banna, Batac, Burgos, Carasi, Currimao, Dingras, Dumalneg, Marcos, Nueva Era, Pagudpud, Paoay, Pasuquin, Piddig, Pinili, San Nicolas, Sarrat, Solsona and Vintar .

By land - It takes 8 hours from Manila, 4 hours from Baguio.