There are those who claim that the City is by a sea or body of water. "Water changes," they say. "Water is change. It never takes the same form twice, just like the City."
They are right and wrong. The City is like the sea. Constantly shifting. But it is not controlled by the moon, it has no tides, no ways to predict where it will land. There is no shore for the City.
But we have fed the City and the sea for a thousand years and she calls us still, unfed.