Submerged Ruins Off Canaanite Levant Byblos to Atlit Yam at Mouth of Oren River & Mouth of Yarchon Wadi Arish Too?

The navigating Canaanites (such as Sidon known to the Greeks as Poseidon) dominated the Holy Land during the Ice Age when sea level was a few hundred feet lower for the seaport cities built then now on the shallow seafloor, ruins submerged found off Byblos, Yarmuta, Sidon, and Atlit Yam, so ruins would not surprise further south down the Mediterranean coast perhaps off Joppa at the mouth of the river Yarchon, and perhaps at the mouth of the Wadi Arish, “the Brook of Egypt” in the Old Testament.