The Karez system is Turpan’s ancient underground canal network, with a visitor section showing the tunnels near the city.
It is the clever reason Turpan’s oases survive: a 2,000-year-old gravity-fed water system that taps mountain snowmelt under the desert. If you are shaping the bigger trip, our Jiaohe ruins guide covers the wider picture.
What makes it special
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You can walk into a real section of the underground channel.
It explains how the basin stays green against the heat.
It pairs well with the above-ground ruins.
How to get there
On the edge of Turpan, about 15 km from the centre, an easy short drive.
Download offline maps before you leave the city. Mobile signal disappears for long stretches on the Duku, the Pamir, and the desert highways.
Best time to visit
April to May and September to October avoid the worst heat; the tunnel stays cool year-round. For the detail you will actually need on the ground, see our Flaming Mountains guide.
Tickets and logistics
- Tickets at the site; the tunnel walk is shaded and cool.
- Combine with Jiaohe and the Flaming Mountains.
- Carry water for the outdoor parts.
- Mornings are calm.
Photo tips
The tunnel interior is dark; use a high-ISO shot. Outside, the contrast of green and desert is striking.
FAQ
What is a Karez? An ancient underground canal that brings snowmelt to the Turpan oases.
Can I go inside? Yes, a visitor section lets you walk a real channel.
Best season? Spring and autumn; the tunnel is cool even in summer.
Do I need a permit? No for this site.
Final word
Xinjiang rewards drivers who plan, then stay flexible. Build a loose route, book the key overnight towns, and leave room for the unplanned stop that turns out to be the best part of the trip.
Written by Karl Huang, a Xinjiang-based travel writer. Visitor access and hours shift by season, so confirm with local tourism before you travel.