SANDBAR
Sandbar day — what nobody tells you about the Marquesas run
You leave from Stock Island, not Duval. You bring your own limes. And if the wind's cranking east, you go west or you don't go.
First thing: the Marquesas aren't in Key West. They're 22 nautical miles west, past the Man and Woman Keys, past the last cell tower. On a flat day the run takes ninety minutes with the throttles trimmed right. On a lumpy day it takes two hours and everyone on board wishes they hadn't skipped breakfast.
The Marquesas sandbar is what people mean when they say "Keys sandbar." It's a horseshoe-shaped ring of pale bottom that comes out of the water on a mid-tide low. You can walk. You can drop a hook and let 60 feet of line pay out and the boat swings on the current like it's on rails.
Here's what nobody tells you: you leave from Stock Island, not from Duval. Almost every captain running to the Marquesas ties up on Stock Island (MM 5) because the fuel's cheaper, the dockage isn't insane, and you can actually load a cooler without a cop writing you up. If your booking says "Key West sandbar," ask which dock. If they say Duval or Sunset Pier, they're a shuttle-and-share operator — not necessarily bad, just different.
Bring your own limes. Bring your own hot sauce. Bring more water than you think — the sun doubles at anchor. If you're bringing kids, bring a flotation vest that actually fits them, because the boat's spares are for adults and you're going to be at anchor for two hours minimum.
Wind direction matters more than wind speed. An east wind under 15 makes the Marquesas run smooth. An east wind at 20 turns the last five miles into a spine test. If it's cranking east, ask about switching to the Snipe Point run or the Woman Key sandbar — same island, gentler ride, and the water color is honestly just as good.
The one thing every first-timer skips: shoes. Reef flats. Even $10 water shoes. The sand's mostly soft but there are patches of dead coral and the last person's dropped cooler lid, and 45 minutes into the day you'll wish you had them.
If you're booking through us, look for trips leaving Stock Island between 9 and 10 a.m. That's the sweet spot — you clear the harbor before the day-drinkers, and you're pinning bottom by 11:30 when the water goes shallow and glass.
