I found a blog with useful tidbits about mainland China and Hong Kong travel.
http://annatam.com/
She also has a handful of entries on how to get from Hong Kong to SZX to take advantage of the MUCH lower flight prices to other parts of the PRC. For some goofy reason, Hong Kong is considered “international” when flying into the PRC. Tickets are hella expensive. However, when you cross the border into Shenzhen and fly out of SZX, flights are considered “domestic” and are at LEAST half the price. Think of it as taking public transit from my house in San Francisco to OAK. About the same amount of time involved.
If you’ve got some time, best to save some RMB, huh?
Musings of a Food and Travel Addict