Iron age Arvadites of Aradus Island (two miles offshore from Tartus, Syria) somehow knew that there was a freshwater spring on the seafloor between Aradus Island and Antaradus (Tartus) which they funneled up to boats in times of emergency (when water couldn’t be brought from Anataradus to waterless Aradus), and near that seafloor spring have been discovered the stone ruins of a fortress submerged when the Ice Age ended circa 1500 b. c., so knowledge of that spring almost surely was passed down to those who used it in emergencies during “the iron age.”
