What are the circumstances in which swamps or everglades can have dramatic low and high tides?

I'm actually trying to create an alien ecosystem, so changing orbits, what's exhibiting tidal forces and the geography and such is welcome if needed. I also wonder how stable a setup with dramatic tides (flowing into an otherwise stagnant area) would be. The point of this specific ecosystem on my planet is the evolution of the dominant race; they evolved in fertile swamps that had dramatic tides. The high tide would be about 7 or 6 feet deep or so (essentially tall enough for a human to swim in), and the low tide would be knee/ankle deep, with days where there's almost no water at all. Anyway, it would need to be stable enough for a species to evolve and adapt to it.

BONUS: It would be helpful to know how this setup could develop, too, but that information is not necessary. I really only need to know if it is possible and stable.

posted over 6 years ago

Tardigreat‭

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