I think I read somewhere once that the closer to the equator you are, the less of a tidal change you will see. I think parts of Alaska have tide changes that can be measured in miles during certain times of the year.
We've been to CSA and CSS and never even noticed a difference between high and low tide. It's amazing, because we were in the Florida Keys last year, and the low tide was so low that it kind of smelled bad along the beach (all of the muck was exposed). No problems like that at CSA that I've ever noticed on four trips.