1. Flying: If you want to save time and effort, flying is a good choice. The plane can reach its destination quickly and directly, avoiding the fatigue of long-distance driving.
2. Go to road trip: If you like freedom and flexibility, and are willing to experience the scenery and changes during your journey, then going to road trip may be a better choice. However, it should be noted that there is no direct land connection between Hainan and the mainland, and vehicles need to cross the sea by boat, which may bring some inconvenience.
Generally speaking, if you want to get to your destination quickly and save time and energy, flying may be more suitable. And if you like freedom and flexibility, and enjoy the scenery and experience during your trip, then going to road trip may be more suitable for you. The final choice should be decided according to personal circumstances and preferences.