There are a few hitchhiking spots, mainly depending on where you are in Hong Kong:
1. At Wan Chai Ferry Terminal, there is a (Wan Chai Ferry Terminal - Huanggang Port, Shenzhen) twenty-four hour overnight bus that costs about 44-50 RMB. This is an overnight bus. The specific location of the bus, in Wan Chai Harbour Road 26, China Resources Building downstairs.
2, Tsim Sha Tsui, Austin Road, No. 8, Hong Kong Scout Center (Fortress International Hotel) there is a transit bus terminal, there are to Shenzhen Huanggang port of the twenty-four-hour overnight bus.
3, Mongkok, Mongkok, 22 Lai Chi Kok Road, near the Vista Hotel, there are to Shenzhen Huanggang Port twenty-four-hour overnight bus.
4. The bus terminus next to the Lam Tin MTR station has 24-hour overnight buses to Huanggang Port in Shenzhen. This place is closer to the Kwun Tong district of Hong Kong.