Southwest · 3 nights · March to June, and September to November
Chengdu
A flat, green, food-obsessed city that would rather pour you tea than rush you across town.

Teahouses, pandas, a chili that numbs
Chengdu is the easiest big city in the west to like, which is exactly why people under-schedule the food and over-schedule the panda. The research base is worth it if you arrive at opening; by mid-morning the animals are asleep and the paths are a queue. The rest of the city is teahouses in people's parks, a manageable old grid at Kuanzhai, and meals that are numbing before they are hot. Sichuan pepper is a sensation, not a dare. Say 微辣 unless you already know you want more.
See
Panda base 大熊猫繁育研究基地
At the gate when it opens. Book a timed ticket. Enclosures nap after the morning feed.
People's Park teahouses 人民公园
Ear cleaning is optional and theatrical. The tea, the chairs, and other people's card games are the point.
Kuanzhai Alleys 宽窄巷子
Restored lanes, partly commercial. Walk through, then eat nearby rather than in the busiest courtyard.
Wuhou Shrine or a day toward Leshan 武侯祠
The shrine is a compact Three Kingdoms stop. Leshan's giant Buddha is a separate day if you want the river.
Eat
Mapo tofu
Beef or pork mince, doubanjiang, and enough Sichuan pepper to make your tongue hum. This is the baseline.
Dan dan noodles
Small bowl, preserved vegetable, chili oil. A snack between teahouses, not a challenge.
Hotpot
Chengdu's version is serious. Order a split pot if anyone at the table is unsure, and a round of plain noodles at the end.