Photo shows the drifting enthusiast on the Lhasa River, July 15, 2009.

Five motorcycle enthusiasts from Guangxi Wuzhou started their Tibet riding travel on May 8th and planned to complete the 12,000 kilometers "Roof of the World" trip within one month.

All the five enthusiasts around 35 years old with good healthy conditions have received the off road motorcycle training.

Experts said the self-driving tourists should pay attention to their personal security and make full preparations to cope with various unexpected situations. Meanwhile, the specialized communications equipments, food, medicine are necessary for tourists.