Individual tourists who wish to go to Tibet must obtain permits in advance from the Tibet Tourist Authorities. The ofice of Tibet Tourism is in Chengdu, Sichuan province. It is authorized by the Tibet Autonomous Region Government to manage Tibet entrance confirmations. Visitors can go in person to the office or fax details of their passports and travel plans to this office. There are daily two flights to Lhasa.
Some people venture to enter Tibet without a permit, but take chances that their efforts fail.
Permits may also obtained in Katmandu, Nepal. Hotel beds are limited in Tibet and reservations have to be made well in advance. Because of the high altitude of the region, travelers may experience symptoms of acute mountain sickness. One may experience sleeping difficulties, headaches and dizziness until ones body got accustomed to the conditions. The climate is dry and on the cool side even in summer.