It's called Hainan Island, and it really is the undiscovered of the South China Sea...
The great thing about Hainan Island is that not only the unique natural beautiful landscape but also have world most pristine and economy girl here.
If you need me to guide can pass email contact: hainantravel@live.cn
Or log on Travel guide on Hainan island - Message Board - Yuku to know more guide details.
If you tell me have cheaper than here I also will like to go.