|Summary:||The "La Trouille" or Constantinian baths, located on the northern part of the city, adjacent to the Rhône River, are entered through a modern entrance on Rue D. Maistro|
|Date:||ca. 300 AD - ca. 350 AD|
|Dimensions:||98 m x 45 m|
Plan: Less than 1/4 of the original baths remain: tepidarium and caldarium (with hypocausts), surrounded by three piscina (one with a reconstructed apse), and adjacent steam rooms.
Date Description: The baths, are thought to have been built in the time of Constantine, perhaps when the emperor came to Arles (Arelate) for a Christian Council meeeting in 314.