Located in Pingtung County, Cape Eluanbi (鵝鑾鼻) is the southernmost point of mainland Taiwan. The Eluanbi Lighthouse is open to the public all year around, and is called "The Light of East Asia" because of its strong intensity. It is also the only armed lighthouse in the world, with a trench surrounding it and many gun holes on the wall. The extra fortifications were required at the time it was built because of frequent raids by local aboriginal tribes.