Batanes, officially the Province of Batanes, is an archipelagic province in the Philippines, administratively part of the Cagayan Valley region. It is the northernmost province in the Philippines, and the smallest, both in population and land area. The capital is Basco, located on the island of Batan.
The island group is located approximately 162 kilometres north of the Luzon mainland and about 190 kilometres south of Taiwan, separated from the Babuyan Islands of Cagayan Province by the Balintang Channel, and from Taiwan by the Bashi Channel.
Wikipedia https://en.wikipedia.org/wiki/Batanes
Coordinates 20°26'56.559" N 121°58'6.044" E