What business should Sanya do?

Photography, fruit, etc. Sanya is located in the tropical area, so there are abundant tropical fruits, such as mango, durian, coconut, mangosteen, banana, cashew, pineapple, litchi, etc., which are all produced in Sanya and can be used for fruit business. Sanya is a famous tourist attraction, and a large number of tourists come to visit it every year. You can consider taking photos, because now many tourists will wear local clothes to take photos when they arrive at a scenic spot, and they can take photos.