An afternoon in a teahouse counts as a day's sightseeing here

Heming Teahouse in People's Park charges by the cup, refills the hot water all afternoon, and nobody will hurry you out of the chair. Around you: cards, matchmaking notices, an ear cleaner working the tables.

This is the thing Chengdu is actually good at, and it is free apart from the tea. Put it in the plan on purpose, ideally after the panda base, when you are up at six and finished by ten.