Located to the east of the Gulf of Fos, about 11 km from the well-known Roman harbour of Fos-sur-Mer, the Laurons cove is a small, protected area made up of three creeks that has yielded important archaeological remains, including ancient port facilities associated with a dozen wrecks. This complex of remains was the subject of surveys as early as 1977, which were very quickly followed by surveys and excavations directed by Serge Ximenes and Martine Moerman (GRASM) in the 1980s and early 1990s. Since the 1990s, the wrecks have been reopened from time to time, notably as part of a dendrochronological programme led by P. Pomey and F. Guibal in 1994. The archaeological remains of the Anse de Laurons have been the subject of uneven documentation and studies, which have produced an important bibliography, particularly on a series of submerged structures (mainly Quai E, dumps and North and South breakwater) interpreted as belonging to an ancient port area used from the 3rd century BC to the 6th-7th centuries AD (Moerman 1994, Fontaine et al. 2019, pp. 21-22). However, and despite an abundant scientific literature, the available data presented many obscure points, both for the dating of certain structures - in particular Quai E and the vast dump - and for their interpretation. We took up the “port structures and wrecks” dossier of the “Anse de Laurons” in the framework of the MoMArch Master’s school project (AMU-Drassm), in the continuity of previous research in the Gulf of Fos and with the desire to answer questions that remained unresolved in spite of the numerous archaeological campaigns of the 1980s. After two archaeological campaigns (2021 and 2022) we have had a series of answers, but not exactly the ones we were expecting, especially concerning the submerged structure known as ‘Quai E’, which we can no longer link to the Antique period. The aim of this talk is to present the preliminary results of these two campaigns, which already provide important news both on the chronology and on the interpretation of the structures in the Laurons cove.