International tourists can't travel independently in Tibet. So you have to hire a tour guide accompanying you all the way and the tour guide cost can't be cut. In addition, Tibet is very vast, most of the famous tourist attractions in different destinations are far away from each other. Outside of Lhasa, you can't take public transportation but to hire a private vehicle to go to the place, thus, there's another big expense. In view of this situation, many Tibet travel agencies have opened Tibet small group tours and budget Tibet tour for budget travelers, especially solo travelers. Compared with a private travel price, joining a Tibet travel group can save at least 25% because you can share tour guide fee, car and driver fee, single room supplement, and the cost of food with other travelers in the group.