Detail of the Visa: Only for Shenzhen and 7 days. Apply at the Shenzhen custom counter at Lo Wu or Lok Ma Chau. Fee ($150) and photo is necessary for such Visa, also, your valid Passport is also needed. Operation Hour: 9am - 9pm. Hope you can enjoy a trip to Shenzhen.
Shenzhen Travel Guide - http://126.96.36.199:10000/index.aspx?aspxerrorpath=/VisitShenzhen/index.aspx
Shenzhen Metro (Chinese) - http://www.szmc.net/index.jsp