Baiae was the Las Vegas of Ancient Rome, the party town known as a “den of licentiousness and vice".

What happens in Baiae stays in Baiae.

Nero murdered his mum there, Caesar and Mark Anthony hit up the beach parties, and Caligula chose it as the ideal spot to build his infamous ‘pleasure villa’.

Sounds pretty fun, when can we go?

Unforch, the whole place sank into the sea in the 16th century.

Still, there are some ruins you can see on land - The Temple of Mercury, the Temple of Venus and the Temple of Diana (the Romans were mad for a temple).

But Baiae is best explored from under the waves...

You can catch a glass-bottomed boat, or scuba your way round the archaeological park.

There’s paved roads, buildings, mosaic floors, ancient baths, marble statues and some friendly underwater critters.

Plus, it’s in Naples, where pastelly houses look like they’re tumbling down the mountainside into the sea to join Baiae.

Seeing Baiae by boat costs €10, or to scuba costs €35.