Jiuzhaigou Valley

Where it sits. Jiuzhaigou is a Y-shaped valley system at the southern end of the Min Mountains, on the eastern rim of the Tibetan Plateau, inside the Aba Tibetan and Qiang Autonomous Prefecture of northern Sichuan. It lies about 330 kilometres north of Chengdu and close to the Gansu border. The protected area covers roughly 72,000 hectares with a further 600 square kilometres of buffer zone, and elevations run from around 2,000 metres at the valley mouth to over 4,500 metres on the surrounding peaks. Three arms make up the visitable park: Shuzheng gully running up from the entrance, then Rize and Zechawa branching left and right at Nuorilang. The name means Nine Settlement Valley, after the Tibetan villages strung along it, seven of which are still inhabited.

Why the water looks like that. The lakes are the reason people come, and the colour is not a trick of the light. The catchment is heavily karstic, and the streams carry dissolved calcium carbonate that precipitates out as travertine, building natural dams, coating fallen tree trunks in pale mineral crust and leaving the water exceptionally clear. Depth, dissolved minerals and colonies of algae and diatoms then split the light into the turquoise, jade and cobalt bands that make Five Flower Lake and Five Colour Pond look artificially saturated. Long Lake, at around 3,000 metres, is the highest and largest and has no visible outflow. Nuorilang Waterfall, at the junction of the three gullies, spills roughly three hundred metres wide over a travertine lip about twenty metres high — a cascade long identified by Chinese audiences with the 1986 television serial Journey to the West.

On screen. Jiuzhaigou's international film credit is Zhang Yimou's Hero (2002), and specifically the duel between Nameless and Broken Sword fought skimming across a lake whose surface is so still that the two swordsmen appear to be fighting on a mirror, their reflections tracking them exactly. The sequence, photographed by Christopher Doyle, was shot on a Jiuzhaigou lake — accounts point to Long Lake — and the production reportedly spent close to three weeks on it, because Zhang refused any visible ripple. Natural currents and wind meant the surface only went genuinely glassy for about two hours each day, from mid-morning, so the crew shot in a short daily window and waited out the rest. Anyone standing at Long Lake or Mirror Lake early on a windless morning can watch exactly the effect he was waiting for, and understand why it could not be faked.

What changed in 2017. A magnitude 7.0 earthquake struck Jiuzhaigou County in August 2017 and did real damage. Two natural travertine dams failed or partly failed: the Nuorilang Waterfall dam, already structurally weak and nearly vertical, suffered collapse at its crest, and the dam holding Sparkling Lake broke, discharge more than doubling and the water level dropping sharply. The valley closed to visitors entirely and reopened only in March 2018, initially with limited access; repairs to the falls and to the road and boardwalk network continued for years afterwards. The park is fully open again, but some features are visibly reconstructed, and it is honest to say that the pre-2017 Sparkling Lake is not what stands there now.

How a visit works. Entry is by timed ticket with a hard daily cap of 41,000 visitors, introduced after attendance passed five million in 2024 with more than thirty thousand a day at the August peak. Private cars are excluded; green shuttle buses run up the gullies and you hop off at each stop and walk the boardwalks between lakes. The standard approach is to ride straight to the top of Rize gully in the morning and work downhill on foot, taking buses to skip the dull stretches. Full boardwalk coverage of one gully is a solid half day. Altitude is a real factor — Long Lake and the upper Rize stops sit near 3,000 metres — and visitors arriving directly by air from lowland cities frequently feel it.

Getting there and timing. Jiuzhai Huanglong Airport, itself at high altitude, sits about 90 kilometres away and connects to Chengdu, Chongqing, Xi'an and Beijing; new rail construction has been steadily shortening the overland approach, which historically meant eight to ten hours by road from Chengdu. Accommodation clusters at Zhangzha, the town at the valley mouth. Mid-October to early November is the celebrated season, when larch and birch turn gold against the blue water, and it is also the most crowded; the first weeks of October collide with the national holiday and should be avoided. May and June bring meltwater volume and rhododendron. Winter freezes the falls into ice curtains and empties the park, with reduced access. Boardwalks are extensive and mostly stepped rather than ramped.