1, different positioning.
Haikou is the provincial capital city, the political and economic center, and Sanya is an international tourist city, with a preference for tourism and vacation, equipped with a new 30 1 hospital.
The climate is different.
Haikou has a subtropical climate, while Sanya has a tropical climate.
3. Different investments
Haikou is more suitable for long-term residence, while Sanya is more suitable for vacation.