Santa Flavia is a relaxing city where you can spend time by the sea. Beachcombers can spend the day at Mondello Beach when the weather is nice. There's plenty more to see, including sights like Soluntum Ruins and Corso Umberto I.
Why not spend a lazy afternoon at Sant'Elia Beach during your trip to Porticello? Wander the parks and seaside while you're in the area.