Also: although planned over 2000 years ago, it wasn't really made by ancient Greeks. They gave up and made a road to transport ships on it instead of actually digging. Only in modern time did they actually finish the canal
They more or less put wheels on ships or rather loaded them on trailers and simply dragged them over land. Funny thing is that Thucydides (460 BC–395 BC) wrote about this, and described it as an ancient practice!
Better even. They made the movable pool quite long. So while the horses dragged the pool the ships could still sail in it. That way the horses didn't need to drag the pool the whole way!