Ershawan Fort, also called Haimen Tiansian (海門天險), which means very dangerous gate to the ocean in Mandarin, built by the Qing government in 1840. This fort saw action in the 1884-85 Sino-French War. Visitors can view Keelung Harbor from the gun emplacement to feel its significance. Buses: 101, 103 from Keelung Train Station, get off Haimen Tiansian (海門天險) bus stop.
