Sperlonga is a beach town that is about halfway between Rome and Naples. It is easily accessible via the slow train line towards Napoli and get off at Fondi-Sperlonga and then you just take a quick bus ride to the main city. It’s only an hour and a half from Rome or Naples so many Romans and Napolitanos spend July and August here.
It is close enough to either city so that if god forbid they have to work during their holidays it’s an easy commute. Sperlonga has a long beach promenade lined with restaurants and shops and then the soft sand beach runs parallel to it.
The beach is mainly covered in a blend of colorful beach umbrellas and most Italians will spend all day on the beach, not leaving until around eight thirty or nine when the sun goes down. The town is also great to explore and is located on a hill that you can climb that gives sweeping views of the Tyrrhenian Sea.