Sanxiantai (Chinese: 三仙台; pinyin: Sānxiantái) is an area containing a beach and several islands located on the coast of Chenggong Township, Taitung County, Taiwan. The beach stretches for ten kilometers in length. It is situated at the 112-kilometer mark. A popular tourist attraction for its rocky coastal views, the area is well known for its long footbridge that connects the coast to the largest island.