Start in Shiqi because the city explains itself at walking scale there. Zhongshan Museum gives old Xiangshan, overseas migration and modern industry a timeline. Sunwen West Road then turns commercial history into real street frontage, while Qijiang Park shows how a former shipyard became present-day public space.
Cuiheng answers a different question. The Sun Yat-sen memorial museum, former residence and village should be seen as one historical setting, not three attractions competing for time. The journey out from central Zhongshan is part of the cost, so the visit needs enough daylight and a clear return rather than another distant stop afterwards.