Zambales, officially the Province of Zambales, is a province in the Philippines located in the Central Luzon region. Its capital is Iba, which is located in the middle of the province. Zambales borders Pangasinan to the north and northeast, Tarlac to the east,
Pampanga to the southeast, Bataan to the south and the South China Sea to the west. With a total land area of 3,830.83 square kilometres, Zambales is the second largest among the seven provinces of Central Luzon after Nueva Ecija. The province is noted for its mangoes, which are abundant from January to April.
Wikipedia https://en.wikipedia.org/wiki/Zambales
Coordinates 15°19'35.261" N 119°58'48.375" E