"The canal is over 6 kilometres (4 miles) in length but only 21 metres (70 feet) wide, rendering it unnavigable for most modern ships, thus of little economic significance nowadays."

I watched a YouTube video just the other day in which a family who lives on a sailboat traversed through the canal on their own journey around Greece. Some of their canal footage was really breathtaking! Although, I have to say I was a little disappointed they didn't seem to know anything about the history of the area they were in.