Neptune's Staircase The eight locks of the Caledonian Canal at Banavie are named "Neptune's Staircase".
The canal was the greatest engineering endeavour of its time. It was surveyed by Thomas Telford in 1801 and construction began in 1803. The impetus for building the canal was the danger to the west coast shipping by French pirates during the Napoleonic Wars. The locks were built to accommodate frigates as well as trading vessels.
Near Fort William, north of Loch Linnhe in western Scotland, it is the longest staircase lock in the United Kingdom, and lifts boats 64 feet.