Tibet is certainly one of the place you just have to visit once in a lifetime. After centuries of virtual isolation Tibet is cautiously opening up to the western world. Tibet is an awesome experience, but it is not for the faint-hearted. Kathmandu provides the gate way in to Tibet. There is a direct flight to Lhasa but you can also drive from Kathmandu. There are trekking routes from Humla in Nepal to Simikot to Mount Kailash in Tibet as well. Best time to visit Tibet is from May to September.
