interesting, that suggests the formation of the 'bays' took place within human memory.
We have a similar situation in Australia. For example, an impact crater dated several million years ago, is depicted in aboriginal art as having been created by a 'burning snake' that fell down from the sky...and the world became dark.
Lake Mattamuskeet, the largest natural lake in North Carolina, is a Carolina Bay. Legendarily, it burned for “13 moons,” or a little over a year. I’m not absolutely certain, but I believe Mattamuskeet means something along the lines of “bad place where the ground burns.”
I’d heard that the Barringer [sp?] crater in Arizona has a similar Hopi Indian legend surrounding it, that a god came down there on a pillar of fire. Very interesting in as much as the commonly accepted dates for humans in N. America is about 25,000 years to late for that to have been observed. Either there WERE people there to observe it, or the Hopi were a lot more intuitive in noodling out what it was from observation several thousand years ago while we were still debating it being a “crypto volcanic structure” into, I believe, the 60’s...