Roman thermae of Lucentum

Roman thermae of Lucentum sit within the Lucentum archaeological site in Alicante, on the Tossal de Manises hill north of the city centre. The remains belong to two separate bathing complexes built by the Roman city that was the direct predecessor of modern Alicante.

What was Lucentum, and why were baths built here?

The settlement dates back to the 4th century BCE, founded by Iberian inhabitants. Under Roman rule it grew into a working port and an administrative centre, reaching its peak during the 1st and 2nd centuries CE. As in any Roman city of comparable standing, public baths were not just about hygiene — they doubled as social venues where residents met, talked business, and spent their leisure time.

How many bathing complexes survive on the site?

Excavations at Lucentum uncovered two distinct bath complexes.

The Baths of the Wall

This was a public facility built in the middle of the 1st century CE, covering roughly 350 square metres. It offered both hot and cold water pools for bathing and socialising. Visitors can still see the hypocaust system here — the raised floor supported on small pillars (suspensurae), under which hot air circulated to heat the rooms from below.

The Baths of Popilio

A smaller complex, funded by Marcus Popilius Onyx, a freedman who held the priesthood of the imperial cult (an augustalis). Seeking the goodwill of his fellow citizens, he built a temple and donated the baths for public use. Despite its modest scale, the complex had three rooms, a boiler, and a water tank.

When were the baths discovered, and what restoration work took place?

The Baths of the Wall were uncovered by archaeologists Francisco Figueras Pacheco and José Lafuente Vidal during excavations in the early 1930s. Restoration and consolidation work to protect the exposed walls and heating installations began in 1993, which is what allows the site to be visited in something close to its original layout today.

What should visitors know before going?

The baths form part of the larger Lucentum archaeological park, alongside the remains of the defensive walls, the forum, and a necropolis located outside the ancient city limits. A visit traces the development of urban infrastructure in the Roman province of Hispania Citerior across several centuries — from modest Iberian beginnings to a thriving port settlement.

Frequently Asked Questions

What's the difference between the two bath complexes at Lucentum? The Baths of the Wall were a public facility open to the general population, offering a full range of hot and cold bathing options. The Baths of Popilio were a private donation from a single citizen and operated on a smaller, more intimate scale, though they were fitted with a similar heating system.

What is a hypocaust, and why does it matter for understanding Roman baths? A hypocaust was the Roman underfloor heating system — the floor rested on small pillars, creating a hollow space through which hot air from a furnace circulated. The surviving sections of this structure at the Baths of the Wall show how technically advanced Roman public architecture had become.

When exactly were the baths at Lucentum discovered? The Baths of the Wall were discovered in the early 1930s by archaeologists Francisco Figueras Pacheco and José Lafuente Vidal, while systematic conservation work at the site began in 1993.

Are the baths part of a larger archaeological site? Yes, the baths are one element of the wider Lucentum archaeological park on the Tossal de Manises hill, which also includes the defensive walls, the forum, and the necropolis of the Roman city that preceded modern Alicante.