Atlit-Yam provides the earliest known evidence for an agro-pastoral-marine subsistence system on the Levantine coast. The final Pre-Pottery Neolithic B site of Atlit Yam dates between 6900 and 6300 BC. Today, it lies between 8–12 m beneath sea level in the Bay of Atlit at the mouth of the Oren river on the Carmel coast. It covers an area of ca. 40,000 m².
Underwater excavations have uncovered rectangular houses and a well. The site was covered by the eustatic rise of sea-levels after the end of the Ice age. It is assumed that the contemporary coast-line was about 1 km west of the present coast. Piles of fish ready for trade or storage have led scientists to conclude that the village was abandoned suddenly. An Italian study led by Maria Pareschi of the Italian National Institute of Geophysics and Volcanology in Pisa indicates that a volcanic collapse of the Eastern flank of Mount Etna 8,500 years ago would likely have caused a 10-storey (40 m) tsunami to engulf some Mediterranean coastal cities within hours. Some scientists point to the apparent abandonment of Atlit Yam around the same time as further evidence that such a tsunami did indeed occur.
Archaeological findings 
Submerged settlements and shipwrecks have been found on the Carmel coast since 1960, in the wake of large-scale sand quarrying. In 1984 marine archaeologist, Ehud Galili, spotted ancient remains whilst surveying the area for shipwrecks. Remains of rectangular houses and hearth-places have been found, along with a well that currently lies 10.5 m below sea-level, constructed of dry-stone walling, with a diameter of 1.5 m and a depth of 5.5 m. The fill contained flints, artifacts of ground stone and bone and animal bones in two separate layers. The upper layer contained partly articulated animal bones, which were presumably thrown in after the well went out of use. Other round structures at the site may also be wells. Galili believes that the water in the wells gradually became contaminated with seawater, forcing the inhabitants to abandon their homes.
A stone semicircle comprising seven 600 kg megaliths has been found. The stones have cup marks carved into them and are arranged around a freshwater spring, which suggests that they may have been used for a water ritual.
Ten flexed burials have been discovered, both inside the houses and in their vicinity. The skeletons of a woman and child, found in 2008, have revealed the earliest known cases of tuberculosis. Bone fish-hooks and piles of fish bones ready for trade or storage point to the importance of marine resources. The men are also thought to have dived for seafood as four skeletons have been found with ear damage, probably caused by diving in cold water. Anthropomorphic stone stelae have been found. The lithics include arrowheads, sickle-blades and axes.
Animal bones and plant remains have also been preserved. Animal bones come mainly from wild species. The plant remains include wild grape, poppy and caraway seeds. Granary weevils indicate the presence of stored grain. Pollen analysis and the remains of marsh-plants indicates the local presence of swamps.
Radiocarbon dating 
The settlement has been dated by three Radiocarbon dates from submerged branches:
- Marine archaeology
- Ehud Galili/Y. Nir, The submerged pre-pottery Neolithic water well at Atlit-Yam, northern Israel, and its palaeoenvironmental implications The Holocene 3, 1993, 265-270.
- Ehud Galili/ Jacob Sharvit, Submerged Neolithic water-wells from the Carmel coast of Israel. Landschaftsverband Rheinland, Rheinisches Amt für Bodendenkmalpflege (ed.), Brunnen der Jungsteinzeit. Internationales Symposium in Erkelenz, 27. bis 29. Oktober 1997. Materialien zur Denkmlapflege im Rheinland 11, 1998 (Bonn Habelt) 31-44.
- Than, Ker (2006-11-30). "Ten-Story Tsunami Thrashed Mediterranean 8,000 Years Ago". Fox News. Retrieved 2005-12-20.
- Hecht, Jeff (2006-12-13). "How Etna's Neolithic Hiccup Set Off a Tsunami". New Scientist. Retrieved 2005-12-20.
- Marchant, Jo (25 November 2009). "Deep Secrets: Atlit-Yam, Israel". New Scientist (Reed Business Information Ltd.) (2736): 40, 41. ISSN 02624079. Retrieved 28 November 2009.
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