McArthur’s Wharf is formerly known as “Buenavista Wharf”. It was built by Lt. Douglas MacArthur in 1903 while on duty with the US Corps of Engineers. It was near this place where MacArthur, fresh from West Point Germany, was ambushed by local guerillas who barely missed his head and perhaps could have changed the course of history.
The pre-war era saw the developments of Sto. Rosario. A certain engineering brigade of American troops extended a hand in channeling roads from Sto. Rosario to sprouting barangays northeast of Buenavista like Ambulong (Salvacion), Calingao (New Poblacion), and Camp Jossman Headquarter (Supang).
The said engineering brigade was manned by Douglas MacArthur, then a 2nd lieutenant. They dug and raked mountains, dumped boulders of rocks, and scraped hillsides. They eventually were able to develop a port and a road stretching to a mountain at the right side of Sto. Rosario which was linked to Ambulong, Calingao and up to Punta Blanco (San Roque). Calingao would later transform into the new seat of the municipality of Buenavista after World War II.