"It wasn't just for tourism but also for safety," Sung Wen-ying, the town's mayor, explains. Sanhsientai is a good place for fishing, and fishermen wading over and back were sometimes caught in the tide.
「不只為觀光，也為了安全」，成功鎮長宋文英表示，由於三仙台離島附近海面是黑潮迴流的地方，從古至今都是著名的釣場，以前釣友涉水過島，經常落水而生意外，「鎮公所既阻擋不了釣客，就有義務幫他們避免危險！」