City line · Fengxian → Pudong · about 85 km
The old sea walls — reading Shanghai like tree rings
Shanghai is made of silt. The abandoned sea walls inland are growth rings — walk them east to west and you walk a thousand years of land being made.
This is the best idea in the whole network, and the one hardest to explain in a sentence.
Shanghai did not exist as land. It was made, gradually, by the Yangtze dropping silt and by people building walls to hold it. Every time the coast moved east, a new wall went up and the old one was left inland — a fence in the middle of a field, marking a shoreline that no longer exists.
Walk from the current coast inland and you cross them in order. Each one is a date.
How to read it
The field pattern does most of the work. Inside an old wall the fields are small and irregular; outside it they are large and geometric, because they were laid out on new land in one go.
Once you notice this you cannot stop seeing it, and the drive or ride out to Lingang stops being empty.
What the route passes
The exterior village of Wazao with its salt-pan grid, the rocket monument at Laogang, the Dazhi River, the Dishui Lake pier, a bookshop in the new town, the flower port, and the 8424 watermelon country of Nanhui.
It finishes at Lingang New City — which is itself the latest ring, built on land that was water recently enough that people remember.
Doing it
The published line is about 85 km, the longest of the ten, and this one really does reward a bike or a car. The point is the transitions between walls, and they are far apart.
Line 16 to Lingang Avenue or Dishui Lake drops you at the newest end. Walk or ride inland from there.
Getting there without a car
Line 16 to Lingang Avenue or Dishui Lake; Line 5 for the Fengxian end.
The honest part
This is one of the city’s official countryside routes, not a ShanghaiWalk route. Distances are as published.
FAQ
Questions
Everything on this site is written and re-checked on the ground. When something changes, this page changes.
Can I actually see the old walls?
Sometimes as low earth banks or a line in the field pattern, sometimes only as a road that runs suspiciously straight for no reason. They are subtle. That is the appeal.
Why 85 km?
Because the coast moved that far. The route runs inland along the whole sequence rather than picking one wall.
Is Lingang worth the trip on its own?
It is a planned new town on reclaimed land — interesting if you care about how China builds cities, skippable if you do not.
Best section without a car?
Around Dishui Lake on Line 16. You get the newest landscape and the water, without the 85 km.
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