This is at the riverside entrance to the South Docks in Canary Wharf This was originally called the South West India Dock, and was constructed in the 1860s, replacing the unprofitable City Canal, built in 1805. The Docks' design allowed a ship arriving from the West Indies to unload in the northern dock, sail round to the southern dock and load up with export cargo in a fraction of the time it had previously taken in the heavily congested and dangerous upper reaches of the Thames. Today the South Dock still has visit from some sizeable ships