How to have a good trip in Xiamen? How many days is better?

Just returned from a trip to Xiamen, I personally feel that it will be more comfortable to arrange at least two days in Gulangyu. One day, I focused on the joint ticket attractions in the south and the exquisite shops on Longtou Road. Walk along the coast one day, play on the beach, and leave some time to buy some souvenirs. If you take a vacation, you should fully enjoy your life. As for Xiamen Island, Nanputuo Temple and Hu Lishan Fort are enough for one day.

Personal opinion, for reference only.