Sanxiantai (Amis: nuwalian; Chinese: 三仙台; pinyin: Sānxiāntái) 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 in the shape of a sea dragon that connects the coast to the largest island. It appears on a map dated 1755 as "Sansana".