From 1998, the excavation campaigns conducted by the Groupe of  Archeological Research of Narbonne (G.R.A.N) proceed to the uncovering  of the baths, bordering the House of the Grand Triclinium.   From the beginning, pipes, briquettes, suspensura bricks, cut blocks  reddened by fire and ashes are found suggesting the presence of baths.   However, several facts obscure their readability and interpretation: pits dug  by material collectors, the discovery of a previous state with basins for the  processing of seafood, and finally the fact that these facilities extend under  the cemetery of Cité.   Piscine des Grands Thermes Système de chauffage des thermes romains Statue de Mercure The excavated bathing complex extends over 600 m2.   From the street D, one entered into a room from which  the other rooms opened.   L'entrée des thermes et les deux pièces demi-souterraines Les deux pièces demi-souterraines The next room (the apodyterium, that is to say, the  changing room) from which few wall decorations  remain is equipped with benches covered with  waterproof mortar painted red. As in Pompeii, guests  left their clothes there.   L'Apodyterium Then they went into the hot room located on hypocaust (ground placed on columns of briquettes to let hot air circulate).  A fireplace was heating it.   L'hypocauste Two pools with cold water, clad in marble and the larger one being covered, were available to the swimmers. Tuyauterie en plomb The bath houses were generally offered by a rich dignitary allowing him to display his fortune and power to increase his popularity. They are often richly decorated: marble, statues, murals, mosaic floors. The operation, maintenance and renewal of the paintings are regularly ensured.   Egout The water was supplied by lead pipes and two wells. The used water was evacuated via a network of sewers to the street C. Piscine des Petits Thermes The passage to the frigidarium (cold room) preceded the immersion into the cold water of the pool (natatio) Abside du frigidarium Le frigidarium Découverte de la statue de Mercure