about 285.2 kilometers.
according to the Baidu map, the whole journey from Sanya to Haikou is about 285.2 kilometers, and it takes about 3 hours and 53 minutes to drive by car, via Hainan Island Expressway.
Ten top delicacies in Haikou: Hainan Powder, Qingbuliang, Wenchang Chicken, Hainan Chicken Rice, Hainan Coconut Cake, Haikou Crab Fried Rice Cake, Haikou chicken coconut, Haikou Roasted Suckling Pig, Haikou Roasted Goose and Hainan Fried Brown.