Ruways 1 is a shell-midden facing the Arabian Sea with dates ranging from the end of the 7th to the 5th millennium BC. The occurrence of tombs, hearths, postholes and net-sinkers revealed that the site was settled by humans all along the chronological sequence. The stratigraphy is made of several levels of shells intersected by dense layers composed of vertebrae of small-sized fishes and of natural aeolian sandy layers. The study of the fish remains (NISP: 4465) provided 17 families of fishes. Most of them were mulets, sardines and sea breams, weighing between 20 to 120 g. These species, along with catfishes, highlight the presence of a paleo-lagoon and a mangrove in the vicinity of the site. The shellfish taxa identified (e.g. Terebralia palustris, Lunella coronata) also confirm that a lagoon and a mangrove were probably present. Located on an early Holocene fluvio-deltaic cimented gravel formation, Ruways 1 appears to be an ancient fishing-station, surrounded by different types of environments, directly accessible and exploitable. Among the discovered fishing gear, a very big hook was find, which surprisingly is not linked with the capture of the fishes observed in the assemblage. The inhabitants of RWY-1 focused on the mangrove/lagoon fauna for their subsistence but could also have occasionally exploited open sea waters.