Mavulis Island

Mavulis Island is the northernmost of the Batanes Islands and the northernmost island in the Philippines. It is part of the archipelagic province of Batanes. The island is uninhabited, but it is garrisoned by the Armed Forces of the Philippines which constructed a shelter for local fishermen, a water desalination plant, a helipad, lighthouse, and a flagpole on the top of the hill on the island considered as the northernmost flagpole in the country.

Mavulis Island is much closer to the Taiwanese mainland than the Philippine mainland of Luzon itself. The southernmost point of Taiwan Cape Eluanbi is about 142 km away, while the northernmost tip of Luzon mainland (Maira-ira Point, Pagudpud in Ilocos Norte) is about 200 km away. The nearest Taiwanese territory is the Orchid Island group, with the uninhabited Lesser Orchid island just barely 98 km away.