Travelling options from Meilan Airport to DoubleTree HaiTang?

Hi
I am flying from Sydney to Meilan Airport and staying in DoubleTree HaiTang. What are the best options of travelling from Meilan Airport to DoubleTree HaiTang? Is it by highspeed rail from Meilan Station to Sanya station and then taxi to DoubleTree HaiTang? or by highspeed rail from Yalong station and then taxi to DoubleTree HaiTang?
Thanks
regards
Alex