Haitang Bay No. 9 is considered to be the most cost-effective five-star hotel in Sanya. Hotel conditions are luxurious and exclusive hot spring resources (there is a hot spring bath in the bathtub in the room), the focus is on the tradition of free upgrade rooms, mountain view room for sea view, this is a common thing, as long as there is room, The front desk generally takes the initiative to upgrade. The service is really good. From the beginning of the lobby, I was shouted by the various staff for seven or eight times: "Mr., Ms. Good evening, hard journey." This treatment is completely untenable. It seems that the rich people are willful to be spoiled by these people. Hotel facilities are very rich, gym, three thermal pools, private beach, children's activity center. and the hotels in Haitang Bay are not as many as the people in Yalong Bay. The beach chairs are used casually.