The Friendship Bridge road between Nepal and Tibet is "disturbed" to quote our operator. I wouldn't like to say categorically whether it will be open or not in December. It depends on snow, avalanches and landslides. There are flights between Kathmandu and Lhasa.
Sian Pritchard-Jones, Kathmandu
Have just returned from a very successful trip flying into Lhasa via Kathmandu and returning by road. It was cheaply and efficiently arranged by Rene of Shigatse Travel (shigatsetravels .com) at the Yak Hotel in Lhasa.
Gillian Feest
Tibet, Nepal, too, in fact, will be freezing cold at that time of the year. You'd get much more out of your trip by delaying it until the spring when the Nepalese and Pakistani valleys are in bloom. Check with the foreign office (fco.gov .uk) as routes from both countries into China are in "sensitive" areas.
Jean-Paul Matin