| Why do some places get massive tides while others don’t?


Not exactly but a better perspective . [Tides](https://youtu.be/pwChk4S99i4)

In: Earth Science

Latitude and elevation change.

The tidal bulge is largest under the moon (almost directly, it tails a little behind). The further away from the current latitude of the moons orbit you are the less mass(height) of the tidal bulge.

Elevation change is the second reason. If the tide is rising by 5 feet, but the slope of the ground rises that five feet over a distance of 20 feet, you only see the tide come in 20 feet. If the ground rises 5 feet over a distance of 200 feet, you will see water rushing in to fill the larger area.


While the location of the moon changes the height of the tidal bulge, that doesn’t actually resolve why some places have stupid large tides. The Bay of Fundy in Nova Scotia has a 13 meter tidal range while the global average is just 1 meter

The really big tidal ranges come from geography and geometry forming a resonance for the tides. If you’ve got an opening just the right width and shape you can stack the waves from the incoming tide to create really low tides and really high tides that make rivers flow backwards.

Generally this is seen in relatively wide (>100 km) bays that are fairly long and can funnel the tides in