It's bays all the way down. Some doggerel for the day.
Embayment
Great bays have little bays upon their flanks to bight 'em,
And little bays have lesser bays, and headlands that define 'em.
And the great bays themselves, in turn, have greater bays they wash in;
While these again have greater still, and greater still, they lie in.
https://www.abc.net.au/news/2024-04-22/port-phillip-bay-melbourne-naarm-bay-landmark/103692264