After spending some time at Qingcheng Mountain, you will head to have lunch in a local restaurant. Then you will continue to visit the only surviving no-dam irrigation system in the world - Dujiangyan Irrigation System. It is one of the world's cultural heritages and was constructed 2,000 years ago. Eulogized as the originator of world irrigation systems, Dujiangyan Irrigation System of Chengdu is the oldest and the only preserved grand irrigation system in the world which has no dam for water-diversion and still in service today. In addition to be a world famed ancient irrigation system, Dujiangyan Irrigation System is also a celebrated scenic spot with neighboring graceful landscape and masses of cultural relics and historic sites. At the end of the tour, your tour guide and driver will transfer you back to the hotel.