hi, we are going to hongkong next year we already have the 2 way - ticket, i want to ask the following:
1. from hongkong, we want to go at shenzen windows of the world, what is the best way to go there, and how much it cost?
2. do we need to secure a visa crossing to shenzen for just a day tour? If, how much it cost?
3. can we travel without the tour guide?

I am expecting a response. thank you very much...