In sbout 4 weeks at a push you could do Shanghai, Beijing, Pingyao, Xi'an, Chengdu, Dali, Lijiang, Zhongdian, Kunming, Guilin (Yangshuo & Longsheng) and then down to Hanoi (or to Hong Kong). I'm not sure if you can get a Vietnam visa in HK, but Kunming it the most popular place to get one in China. If you plan to visit HK and then go to Vietnam overland, you'll need a double entry (or get a second) Chinese visa, as HK counts as leaving China.
I'm not sure what they're currently offering for visas. Previously, they have offered 30, 60 or 90 day visas depending on what your plans are, but during the olympics (and in the buildup to it) they were only offering 30 day visas. I believe this has been increased again but I'm not sure. |