Be very careful before using Peter Yang as a guide. His tents are useless they leak lots of water, you must take your own. If he is providing food, ask what he is providing be very specific, I was fed a vegetarian diet and often for breakfast was given one plain steamed bun. When I first met Peter he was very charming and helpful but the guy seems to have a chip on his shoulder regarding westerners which surfaced as we got more into our trip together. I had to be very careful what I said to him, I was often lectured unexpectedly, I was once lectured on the benefits of using chop sticks over the barbaric use of a knife and fork, despite my never asking for a knife and fork and using chopstick when I ate for all my meals in China.