How to get to Hai Feng County from ShenZhen ? We will be arriving from HK (LuoHu) by MTR.

You can go to Luohu Long-distance Bus Station to take bus to Haifeng County. The bus runs from 07:20 to 20:15 every 25 minutes. Considering about your situation, with an infant and 2 elders, you can try to hire a cab. It may be expensive, but fast and comfortable.

Thanks Nancy. But can I know how far is frm SZ to Haifeng County in terms of hours ? If I were to take a cab, are they trustable ? How much will be the cab charges averagely ? Also are there any trusted car/van hiring company that can helped me here ? Thanks in advance....

Hi, the bus may take about 3-4 h to Haifeng, because there is about 200 kilometers between.
So it is costly if you hire a cab or van, though, it is generally safe enough.
As for the car rental, you can search the Ehi Car Rental Service to ask for help.
It is suggested to hire a local car to drive to Haifeng.