Im planning a 6 month trip to hopefully travel through tibet and china, then through vietnam and se asia.
Can anyone give me some advice of the best way of doing this,
what is the cheapest place to fly to (from london) to start the trip from?
I plan to include mongolia, and some of northern china...
my orginal idea was to do it in this order...
tibet-china/mongolia-vietnam-cambodia-… with a few months in japan.
do you think this is a good order? is there a better/cheaper way of doing it.
all help will be much apprectiated!

