Taiwan, formerly known as Formosa, is an island in East Asia; located some 180 kilometres off the southeastern coast of mainland China across the Taiwan Strait. It has an area of 35,883 km2 and spans the Tropic of Cancer. The East China Sea lies to the north, the Philippine Sea to the east, the Luzon Strait directly to the south and the South China Sea to the southwest. The island makes up 99% of the current territory of the Republic of China, which is also known as "Taiwan".
Taiwan is a tilted fault block, characterized by the contrast between the eastern two-thirds, consisting mostly of five rugged mountain ranges parallel to the east coast, and the flat to gently rolling plains of the western third, where the majority of Taiwan's population reside. There are several peaks over 3,500 m, the highest being Yu Shan at 3,952 metres, making Taiwan the world's fourth-highest island.
Wikipedia https://en.wikipedia.org/wiki/Geography_of_Taiwan
Coordinates 23°45'3.932" N 120°58'20.363" E