(Exodus, Ibid. "They descended into the metzuloth": Now are there metzuloth there? Is it not dry land? We are hereby apprised that the Great Sea (the Mediterranean) burst into it (the Red Sea) and the torrents embattled them. Thus, "They descended into the metzuloth." "as a stone":
They Descended into the Metzuloth Now Are There Metzuloth There
Mekhilta Tractate Shirah 5:4