Sichuan's ice corridor runs through the high country of Aba prefecture, and its two most useful valleys sit within a day of each other: Shuangqiao at Mt. Siguniang, which teaches most of the region's beginners, and Bipenggou in Lixian County, the longer, quieter valley to the north. Same winter, same ten-week season, different rhythm.
The valley
Bipenggou is a long glacial valley under the back side of the Siguniang massif — larch forest, a road up the floor, and walls that step up toward 5,000-metre peaks. In the leaf season it is one of Sichuan's great autumn colour walks; in deep winter the waterfalls hanging in its side gullies stop being scenery and become the point. Lodging sits in and near the valley, which keeps the climbing days short on logistics and long on ice.
The ice
The falls form between roughly 2,800 and 3,600 metres, a band of altitude where the cold is reliable without being savage. The climbing runs from friendly WI2 school lines through sustained WI3s to the pillars that give a strong week its ambitions. What the valley offers, more than any single route, is variety in one place — slabs, pillars and verticals close enough together that a week never repeats a day.
How a week runs
The shape that works: two days of top-rope volume to load the movement patterns, a gear day for anchors and screws, then lead days on lines the instructor picks against conditions. Six days total with the drive from Chengdu at each end, and a hot-spring evening at Guergou on the way home that nobody has ever declined. That is exactly the private ice week we run there — your dates, December to February.
Going there
Chengdu is the gateway: four hours by road to Lixian, with the last hour climbing into the valley. Altitude is real but moderate — lodge nights near 3,000 metres, which anyone who has slept in the corridor handles fine. Come after a beginner course or with solid gym leading behind you, and the valley will meet you wherever your climbing actually is.
Where this leads
The Bipenggou ice week
Shuangqiao Valley, in detail
WI grades, explained