I plan to go to Xiamen with my friends in July. What are some good travel tips to recommend?

I think Gulangyu Island in Xiamen is a very good place. After all, the title of Sea Garden is not for nothing. It can also be regarded as a landmark attraction in Xiamen and the most worth visiting place in Xiamen. The green space coverage rate of Gulangyu Island is more than 40%, and the plant population is rich. There are more than 90 families and more than 1,000 species of various trees, shrubs, vines, and ground cover plants. Representative attractions include: Sunlight Rock, Shuzhuang Garden, Haoyue Garden, Yuyuan, Gulang Stone, Gulangyu Piano Museum, Zheng Chenggong Memorial Hall, Underwater World, Natural Beach, Sea Paradise Structure, etc.