Beyond Fishing — Water, Wrecks & Weirdness

The SS Sapona: A Concrete Shipwreck You Can Snorkel From the Surface

Visit Bimini

A concrete ship sounds like a joke and it was a real answer to a real problem: steel was rationed during the First World War, so a number of hulls were built out of reinforced concrete instead. Most were scrapped. This one ended up wedged on a bank off South Bimini in a hurricane and never left, which is why you can go and stand next to it — operators who run the Sapona trip have been doing so for decades.

What makes it worth your morning is not the history though. It is the geometry.

How a concrete ship ends up here

The short version: wartime steel shortage, concrete hull, commercial life, hurricane, aground, and then Prohibition happened to it. Rum-runners used the wreck during the years when moving alcohol from the Bahamas into Florida was an industry, and Bimini being the closest Bahamian land to the American mainland made this whole island central to that trade.

Then it just stayed. Nearly a hundred years of hurricanes have gone over it and its still there, still above water, which says something about reinforced concrete that the shipbuilders of 1918 would probably enjoy hearing.

Why it works as a snorkel

Most wreck sites are a dive or nothing. You need certification, a boat with tanks, and a day’s commitment, and the non-divers in your group get a boat ride and a magazine.

The Sapona is not like that, because it is partly out of the water. The hull breaks the surface, so the structure is legible from above — you can see the shape of the ship rather than a dark suggestion of one at the edge of visibility. That single fact is why it turns up on snorkelling itineraries and shark-and-stingray day trips rather than only on dive schedules, and its the reason it is the right pick for a mixed group where one person dives and three do not.

It is a boat trip either way. This is not a swim from a beach.

What lives on it

Structure in open water is a magnet, and a large concrete hull sitting on sand is about as obvious a piece of structure as exists. On our own species data grouper hold on it the way they hold on every reef ledge here, tucked into the hard edges and extremely reluctant to leave them.

Which brings a legal note worth carrying with you. The grouper species most associated with Bimini is the Nassau, and it is Critically Endangered and closed nationally from 1 December to 28 February. Black grouper is the realistic legal target the rest of the year. We wrote that up properly in the piece on the grouper world record and the closed season, and it matters here because a wreck full of grouper is exactly where the question comes up.

Getting out there, and what we do not know

Our directory carries 3 operators whose own descriptions say they run trips to the Sapona:

Two of those describe the Pablo plane wreck in the same breath, so the two sites are commonly run together on one excursion. Commonly, not always — ask when you book. Bimini Splash, a locally owned operator is one of them, and the wreck itself has the wreck’s directory entry if you want the map pin.

If you are building a day around it, the rest of the non-fishing side of the island covers the hammerheads, the mangroves and the genuinely strange stuff.

Where this comes from

Open item: current depth and structural condition at the wreck. Nobody from this project has been in the water here, so no depth figure and no access assessment appears above. Operator names come from our own directory descriptions; prices do not exist on this page at all.