Sichuan rewards self-driving more than most provinces — the western half is built around roads rather than rail, and the freedom to stop at a pass, a village or a stretch of plateau is hard to replace. It also punishes careless planning. Mountain roads, altitude gained too quickly, weather arriving on a schedule you cannot see from the valley, and distances that consistently take longer than mapping software suggests: these are the four things that turn a good trip into a difficult one.
This guide is about avoiding the predictable problems.
The most common planning error in Sichuan is underestimating drive time. A hundred and fifty kilometres on a mountain road is not a two-hour journey; it can be four, or five with roadworks, weather, livestock on the carriageway, or a pass that demands slow going. A useful working rule: on mountain roads, assume an average speed well below what you would expect on flat highway, and add a buffer for stops.
Most altitude problems in Sichuan come from gaining height too quickly rather than reaching great height per se. Chengdu sits near 500 metres. Several popular destinations sit above 3,500 metres, and some passes exceed 4,000. Going from the first to the second in a single day is the standard mistake.
Better practice: spend a night or two at an intermediate altitude before the high country. Kangding and similar gateway towns exist partly for this reason — use them as acclimatisation stops, not just as places to drive through.
Headache, nausea, loss of appetite, unusual fatigue and poor sleep are the common early signs. Most people feel some version of this on the first evening at height and improve by the second morning. The signals that warrant action rather than patience are a headache that will not respond to anything, repeated vomiting, confusion, or breathlessness while resting. Those mean descend, and descend promptly.
| Season | Road conditions | Main risk | Verdict |
|---|---|---|---|
| Spring | Generally good, some residual ice high up | Unstable weather at altitude | Good, with layers |
| Summer | Wet; landslides in the mountains | Road closures from rain | Scenic but check conditions daily |
| Autumn | Best of the year, dry and stable | Crowds at peak weeks | Optimal |
| Winter | Ice on passes, some routes closed | Black ice, cold-weather breakdowns | Only with proper preparation |
Summer rain is the biggest disruptor. The plateau and mountain corridors can close for hours or days after heavy rainfall, and a closure rearranges an entire itinerary. In those months, check conditions each morning and keep the schedule flexible enough to absorb a forced night somewhere unexpected.
The main corridors out of Chengdu and between major cities are good, well-signed and fast. Tolls apply on expressways. Signage includes English on major routes.
The mountain workhorses. Mostly paved, sometimes narrow, frequently under repair. Expect slow sections, occasional gravel detours, and trucks. These are the roads where your time estimate will be wrong.
Variable. Some are excellent; some have sections that would challenge a low-clearance car. If a route’s condition matters to your plan, ask locally or check recent traveller reports rather than trusting a map.
Driving in China requires a Chinese driving licence; an international permit alone is not sufficient. Most visitors therefore hire a car with a driver, which is widely available, reasonably priced, and removes most of the risk described above. This is the option worth taking unless you already hold the right documentation and have regional driving experience.
Agree the itinerary, the daily distance and what is included before setting off. Good drivers know which passes are open, where the roadworks are, and which towns are worth stopping in — local knowledge here is worth more than any guidebook.
Livestock on the road is normal in pastoral areas, and it does not move for you. Landslide debris appears after rain. Tunnels on mountain roads can be unlit. Reduce speed at blind corners and assume something is around the next one.
Yes, with preparation. The risks are mostly predictable: too much distance per day, altitude gained too fast, night driving, and summer road closures. Avoid those and the driving itself is unremarkable.
On highway, the usual long-day distances apply. On mountain roads, plan far less and judge by hours rather than kilometres — five to six hours of actual driving is a full day.
Yes, by road, though it is a long journey from Chengdu and crosses high passes. Many travellers fly into Daocheng instead and drive only locally, which shortens the trip considerably.
Have buffer days and be willing to wait. Trying to push through a closed section on mountain roads is how people get into genuine trouble. Ask locally for the reopening estimate.
Portable cans are widely sold and mildly helpful for discomfort, but they are not treatment. For real symptoms, descending is the answer. Many hotels at altitude also have concentrators.
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