In 1952, the US built a ship with a secret military purpose that still holds a world speed record. Now, it’s set to become the world’s largest artificial reef

The SS United States, an ocean liner built with a secret military purpose nearly 74 years ago, is set to become the world's largest artificial reef when it is sunk off the Florida coast in November 2026. According to reports, the ship is expected to be sunk in the Gulf of Mexico during the second week of November, about 22 nautical miles southwest of Destin-Fort Walton Beach.

Artificial reefs are man-made structures designed to promote marine life. Florida has thousands of such reefs, with more than 4,548 reported in the state as of May 2026.

The SS United States made its debut in 1952 and was the largest ocean liner to be entirely built in the United States. It also holds the record for the fastest transatlantic crossing in either direction, having earned the Blue Riband for its record-breaking speed on its maiden voyage in 1952. The record is yet to be broken.


Another intersting fact about the ocean liner is that it had a secret military purpose. Initially it was used to carry celebrities and immigrants until 1969 but it was designed to be converted into a troopship for the US military in the event of a war too.

But for some unknown reasons, the SS United States was abruptly withdrawn from service in 1969, and all its planned cruises were cancelled. It subsequently changed hands several times as its owners attempted to find a way to make it profitable. Its interiors were stripped and auctioned off before the ship was eventually towed to Philadelphia, where it remained until February 2025.

Efforts were also made to save the ship from being scrapped. However, the SS United States Conservancy, which purchased it in 2011, was unable to restore the vessel. In 2024, the ship was evicted from its Philadelphia berth over unpaid dues.

Okaloosa County, Florida, subsequently purchased the vessel and decided to sink it off the state's coast. The plan is to transform the historic ocean liner into an artificial reef, creating a new marine habitat while preserving its legacy in a different form.