हॉगकॉग के मैप पर बस मार्ग Wan Chai All China Express (Wan Chai - Huanggang)

Intermediate stops would be different at night.
Passengers should buy a ticket before boarding the bus.
To use the northbound service, passengers must deboard at the Lok Ma Chau Control Point (South) stop, clear border and custom check of Hong Kong, reboard the bus at the Lok Ma Chau Control Point afterward, and then drop off at the Huanggang Port of Entry stop for the border and custom check of Shenzhen.
To use the southbound service, after clearing Shenzhen border and custom check and boarding the bus at Huanggang Port of Entry stop, passengers must deboard at the Lok Ma Chau Control Point (North) stop, clear border and custom check of Hong Kong, and then reboard the bus at the Lok Ma Chau Control Point (South) afterward.
If there are delay in border and custom check process then you can ride on the next bus.