The Shaanxi loan show at Hong Kong Museum of History is worth a Saturday morning, with one honest note: the museum targets it at ages 6-12. A five-year-old with patience for glass cases will get something from the white pottery dancing horse and the painted Tang dancer figurines, both pieces that hold visual attention even without the historical framing. A three-year-old probably won't track it. 165 artefacts in total, 18 grade-one national treasures, free admission. It runs until August 24, so there is no weekend urgency, but May before the humidity locks in is when you want to be doing TST on a weekend morning.
MTR to Tsim Sha Tsui, Exit B2, then roughly ten minutes on foot to Chatham Road South. Opens 10am, closed Mondays. Weekend tour groups arrive by late morning, so going early is the sensible call. Lifts available; no stroller problem reaching the galleries. Bring water for the walk in. The building is well air-conditioned; the street between the station and the entrance is not.