Ever been to the Great Lakes?
They have beaches. Period.
I would call the Great Lakes inland seas. L Michigan is 120 miles wide at its widest, and about 300 miles long.
There are some nice beaches on the lakes.
“Ever been to the Great Lakes?”
Don’t need to as I’ve been to the real beaches of the Pacific/Atlantic Oceans and the Mediterranean Sea. I’m within a half hour of the Atlantic Ocean every day and only a few hours from Florida and North Carolina beaches.