I visited in few days this place and I love it! http://en.wikipedia.org/wiki/Lake_Lugu
I went by car in a long trip, around 12 hours for go and 12 hours for come back with a stop for sleep in Xichang City 西昌.
A long part of the road is dirt so you must pay attention about drive because it’s easy broken the car, for example we punctured a tyre and the catalytic converter.
But arrived we have seen a really quiet and natural lake in a relaxing time, for us only a day but I suggest a week for enjoy the locally life and culture of Mosu people. We danced just one night around the fire but a big rainy caught us… really unlucky time!
Anyway a loveable place, for have a relaxing holiday in the nature…