How can i travel from shenzhen north railway station to china hong kong ferry terminal?

Hello. You may take local metro line 4 to Convention & Conference Center, and transfer to line 1 to Luohu. Cross the border to Lo Wu, HK. Then take East Rail Line to Hung Hom and change to West Rail Line to East Tsim Sha Tsui. Walk through the underpass to Tsim Sha Tsui station and get out from exit A1. After that, you can walk to the ferry terminal within 15min.