The Thai royal family in Chiang Mai's summer palace needs tickets. There are strict dress requirements for entering the house. Long sleeves and long pants/long skirts are required and opaque. If you don't meet the requirements, you can borrow clothes across the road. The price is not expensive. The so-called "Royal Palace" is more like a garden villa, with a flower garden and a greenhouse, although not big, but quite beautiful. Climbing up the mountain and climbing it is said that there is also a dam and other buildings in the palace that cannot be visited.