Going to Gulangyu, you can refer to this route. This route is for reference to others, not my own. Piano Pier-Xiamen Underwater World-World Celebrity Wax Museum-Gion-Gangzai Back Bathing Beach-Gulangyu Concert Hall. You can take a tourist map on the island, and it is sold at the pier. The wax museum didn't go in, just took a few photos outside.