The Saronic Gulf or Gulf of Aegina entrance
All these years at sea and I still only had one of the big canals under my belt, the Panama. It is the biggest though and quite an experience.
Recently we sailed through the Corinth Canal, connecting the Gulf of Corinth and the Saronic Gulf. Quite a feet of engineering in its day. The idea was conceived as far back as the 7th century BC by the tyrant Periander who instead built an overland passage for ships. Construction of the canal wasn't actually completed until 1893.
At 21m wide it's far too narrow for most modern vessels and even our boat takes up more than half the width. The 52m high walls are spectacular especially set against the contrasting azure colour of the water.
Suez here I come!!