The former line the canal and are populated by asymmetric-fringed students.

Re-puddling was a long process, so experiments with the use of heavy gauge polythene to line the canal were undertaken.

Hundreds of thousands of people lined the canal between the dock and the open sea.

The pictures were so detailed that they capture a greenish-brown slime of laminaria algae lining the canals.

Warehouses used to line the canal.