The cruise ship pier in Cartagena overlooks a marina.  The city tour that was led by a local guide focused on what remains of a Roman theater that was unearthed and made into a museum in the recent past.  Laetitia chose the theater as the subject of her limerick.

The city now called Cartagena
Once was home to a Roman arena
And its “Teatro Romano”
Is a place you’ll want to go
In this “Mare Nostrum” port with marina.