[Not just superficial check-ins, but with "engagement"] Get a Kulangsu sketch portrait drawn; brew a pot of southern Fujian kung fu tea yourself; then visit Shuzhuang Garden and the piano museum.
A perfect mix of activities and relaxation for slow-paced travelers. This is not a rushed itinerary, suitable for couples, family-friendly outings, art lovers, and those who prefer not to rush through attractions.
A takeaway "afternoon on Kulangsu" - Sketching is not about detailed portraits, but pencil-style sketches that quickly capture people and elements of Kulangsu.