Greece's strange bay.

Wide-angle photo of the unusual beach Voidokilia: With an open, almost circular embrace this sandy beach welcomes the sea. Because of its shape, which resembles the Greek letter Omega, the dune landscape bears the nickname "ox belly bay".

The thin stretch of fine sand separates the sea from the Gialova lagoon except a small rock opening. | Greece
Maybe Mother Nature decided to apply her knowledge of geometry in creating this place.
:-)
Beautiful landscape! Superb view!