Since Arles was a well-established ancient town, the Romans created an extensive bathing complex. The Thermes de Constantin (Baths of Constantine) date back to the 4th century AD.
and are situated near the banks of the Le Grand Rhône River. The once-grand complex of buildings resembled a palace. However, the only remains include the Caldarium (warm bath) and parts of the Hypocaust (underfloor heating) and the Tepidarium (warm air room).
