Sichuan stages Chengdu's giant panda research base and tea-house culture, the Buddhist Mount Emei pilgrimage, Leshan's 71m-tall Buddha carved into the cliff, and the Tibetan landscapes of Jiuzhaigou's coloured lakes.
Spring with Sichuan basin at pleasant 22°C, Jiuzhaigou's lakes at peak meltwater colour, and the giant pandas at Chengdu Research Base most active.
Autumn with Jiuzhaigou's larches turning gold against turquoise lakes considered the country's most photogenic landscape, Mount Emei pilgrimage at peak.
Hot humid summer with Chengdu at 32°C, but Mount Emei (3,099m) stays 12°C cooler, and the Sichuan hot-pot scene runs year-round in air conditioning.
Cool damp winter with snow on Mount Emei's golden summit shrine, Jiuzhaigou often closed by snow, and Chengdu's tea-house culture indoors at peak.