Every province in Guangxi, Guizhou, Fujian and Hainan has many interesting places, depending on where the landlord wants to go. It&;s very big, and there are many places to play. If you want to have a deep tour in any province, it takes one month.
The landlord must first determine where he wants to go.
Guangxi: Guilin, Yangshuo, Weizhou Island, Bama, Huangyao Ancient Town, etc.
Guizhou: Anshun, Kaili, Zhenyuan, Qiandongnan, Chishui, etc
Fujian: Xiamen, Wuyishan, Quanzhou, Guanqishan, etc.
Hainan: Yalong Bay, wuzhizhou, Sanya, etc
I hope my answer can help you.