Patapat Viaduct is an elevated concrete highway constructed along winding and rocky headlands near the northernmost roadway section in Ilocos Norte. This viaduct was constructed to solve the problem of landslides in the area which have caused so many vehicular accidents in the past. Footed on the rocky seashore just several meters from the mountain side it gives motorists a spectacular view of Pasaleng Bay.
The Patapat viaduct is about 16 kilometers from Pagudpud, Ilocos Norte. From Pagudpud, simply head northeast towards Cagayan. This will take you through winding mountain roads that have lush vegetation on both sides and occasional views of the sea until you reach the patapat viaduct.