I think Morpheus has a point .... somewhat.

In the Med there is hardly eb and flood as tides. Maybe a couple of inches. From west to east we are talking 3000 miles or so. The interesting part is: it differs from place to place. In some places it can reach a difference of 1 meter or 3 feet.

The same goes for other places around the world having 3 or 4 tides a day instead of 2.

So, what we learned at school, that the moon is responsible for the tides (think spring-tide = storm + tide) may be somewhat questionable. The model generally works so no one thinks about it.

For instance, does it matter if a coast line is under a certain angle with the moon making the tide there more or less?

Why does the North Sea have a tide but the East-Sea, or the Baltic sea does not? What's the difference? Does it make a difference if the water is salty or sweet? How much water column do you need to get tidal effects? How about the Caspian Sea?

I dunno the answer to these questions. I looked for them somewhat, and learned quite a lot. But the questions are still valid.