Yes, there is no direct bus between the hotel and the airport. If you would like a easy trip, you could reserve a car in advance or take a taxt when you arrival, the journey takes about 40 minutes. But, taking taxi is not suggested in Sanya since there is always some cost trap~

Alternatively, you could take the city-bus No.8 from the airport and get off Dadonghai Station. Then, you could take another city-bus to Asian Dragon Bay where your hotel is located. Tips: there is double-decker sightseeing bus running from Dadonghai to your hotel until t0 19:00 at an interval of 10 minutes. It takes about one hour.