Is it better to go on a self-guided tour or a group tour in Sanya?

My suggestion is that you can go with a group or contact a local travel agency. If you go with a group, you should know the itinerary clearly and you can book a double flight. It's a round-trip flight. If it's 7 days, you can make it clear when signing the contract how many days the return ticket will be postponed for you. In this way, you can play with the tour group and visit the places you haven’t visited or the attractions you haven’t visited. You can leave yourself a few days to go by yourself, and you don’t have to book the return ticket yourself. With the experience of food and accommodation in the first few days, I will become familiar with it later. Generally, if you go with a group, you can visit Sanya, Xinglong and Haikou and have accommodation. I think this is the best way, much better than blindly looking for a location by yourself. You can play very comfortably and save half of your money.

Haha I hope this helps you!