Choose one city for two nights or divide four nights between both. The aim is to see the lake, gardens, canals, and neighbourhoods at different hours.
Do not stack the classics
West Lake and classical gardens can both be crowded at peak hours. Pair one major sight with a quieter street, tea house, or waterside walk.
Stay close to the evening
The atmosphere shifts after day visitors leave. A central, walkable stay is often more valuable than a larger hotel far from the old fabric.