A number of watchtowers still exist in the narrow coast of La Union and Ilocos. Going from north to south the towers are found at the following sites:
- Ilocos Norte: Bacarra, Viquia or Natba watchtower at Natba Beach; Badoc at Barangay Lingasy; Currimao at Currimao port (two towers); Pasuquin at Puyupuyan Beach.
- Ilocos Sur: Santo Domingo at Barangay Kasili; Sinait; Santiago at Sabangan Cove; San Esteban at Barangay Bateria; Narvacan at Barangay Sulvec; Cabugao at Salomaque. Bantay is a unique tower because it also serves as the bell tower for Bantay Church.
- La Union: Balaoan at Darigayos Point; Luna, San Juan, and Carlatan a district of San Fernando City, north of the town center.
Muog 