I am really confused with Shekou Port and Shenzhen Bay (Wan), Is Shekou Port is the border crossing port on China Mainland side, while Shenzhen Bay (Wan) is the boarder crossing port in HK, am I right ? I just want instruction to which shuttle bus will take me to the border crossing port in Shenzhen, then I can clear China custom and go to the HK immigration port in HK side. Thanking you for anyone can help me.