Parco Archeologico delle terme di Baia- Bacoli, Archaeological park in Bacoli, Italy
The Parco Archeologico delle Terme di Baia is a sprawling archaeological area containing the remains of ancient Roman thermal baths and residential buildings spread across the hillside. The site includes multiple levels with stone foundations, water channels, and rooms that served different purposes in daily life.
The site originated in ancient times as a spa destination where Roman elites came to use the hot springs for health purposes. Over the centuries, portions of the complex gradually sank beneath the sea due to volcanic ground shifts, creating an underwater archaeological record.
The site reveals how wealthy Romans spent their leisure time, relying on thermal springs they believed had healing properties. Walking through the ruins, you can see where guests bathed and relaxed, showing what life looked like for Rome's affluent residents.
The site sits by the sea and is accessible via pathways winding through the ruins; sturdy shoes are recommended since the ground is uneven. You should allow plenty of time for your visit, as the complex is large and there is much to explore.
A striking feature is that visitors can see ancient structures on the seafloor from the land, where the ground meets the water. This connection between the terrestrial and submerged portions allows you to experience two different archaeological worlds in one place.
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