I am keen too ..... however, found out that SilkAir only flies to Kunming on Tue, Thu and Sun. Got to catch another connecting local flight from Kunming to get to Lijiang. Due to the timing of the connecting flight between Kunming and Lijiang, need to spend the first and last day in Kunming to be able to make the connecting flights to and from Lijiang, which is a chore.
Hence, if you are flying by SilkAir, the minimum number of leave you need to take is 4 days i.e. Tue to Sun or Thu to Tue or Sun to Thu.
So, what is there to do in Kunming besides golf?