My suggestion is to FedEx your film to your hotel Guangzhou. My experience with FedEx is that they do not/didn't X-ray their shipments. Regardless of how you get to Guilin, you'll certainly stop over in Guangzhou. Coming back, do the same thing in reverse. BTW Guilin is/was classical China. You'll get great images of the rugged almost vertical mountains as you move up the Li River from Guilin. If you take a bus to return you'll see quaint countryside villages and the drying rice (on the pavement even though the buses send it flying!). Have a good trip and report back to all of us APUGers.