UPDATE July 4:
The CBS producer who first broke the story refuses to retract it. See what he's saying in our follow-up story, along with a video that could prove he's right
UPDATE 10:20 p.m. ET: CNN's Jake Tapper on Twitter Wednesday night reported a State Department spokesperson is denying reports that Secretary of State John Kerry was on a boat.
"Any report or tweet that he was on a boat is completely inaccurate," the spokesperson reportedly said.
Well, it apparently wasn't Cairo.
Although John Kerry's reported encampment du jour could theoretically get to Egypt's shores.
Just not very swiftly:
The source would appear fairly reliable; Oinourou is a senior producer for CBS News This Morning.
And here's some interesting video background on the "infamous" Isabel and her captain (something about taxes and moving the vessel from state to state):