USS Oriskany: Diving the Mighty O — America’s Great Carrier Reef

Advanced

Training Level

90 Ft

Top Depth

100 ft 

Bottom Depth

Boat

Entry Type

Overview

The USS Oriskany (CV/CVA-34) also known as “The Mighty O” and “The Great Carrier Reef” is a 904ft long US Navy aircraft carrier. She is far more than an incredible wreck dive—it’s a floating piece of American history. Commissioned in 1950, this Essex-class aircraft carrier proudly served our nation during both the Korean and Vietnam Wars, earning seven battle stars and launching thousands of combat missions in defense of freedom. She was intentionally sank as an artificial reef on May 17, 2006. This wreck is the world’s largest intentionally-created artificial reef. She rests in 212 ft of water with her upper sections settled at 84 ft. The wreck is home to a wide variety of marine life including small tropical fish such as blennies, damselfish and angelfish and large game fish such as snapper, grouper and massive amberjack. Pelagic fish species can sometimes be spotted and even whale sharks and manta rays have been spotted cruising around the tower of the carrier. Due to her depth and potential strong currents, the Oriskany is only recommended for advanced divers.

A Carrier That Served the Nation

Commissioned in 1950, the USS Oriskany was the last Essex-class aircraft carrier completed for the U.S. Navy. During the Korean War and Vietnam War, she launched thousands of combat sorties and earned seven battle stars for her service. At her peak, the ship carried roughly 2,600 sailors and airmen, functioning as a floating airbase capable of projecting American power across the Pacific.

The Oriskany also endured one of the Navy’s most tragic wartime accidents. In 1966, a catastrophic fire aboard the carrier claimed the lives of 44 crew members, a sacrifice still remembered by veterans and families connected to the ship.

Today, every descent onto the wreck feels less like visiting scrap metal and more like entering a submerged memorial to the generations who served aboard her.

Oriskany (foreground) in 1970
Oriskany (foreground) and her sister Bonhomme Richard conducting operations in the Gulf of Tonkin in 1970. (https://en.wikipedia.org/wiki/USS_Oriskany)

Hollywood Allure

Movie fans often associate the Oriskany with Top Gun. While the actual flying scenes were filmed aboard the USS Enterprise, the USS Oriskany plays an important role in the movie’s backstory.

In the film, Maverick’s father is described as having flown his final mission from the USS Oriskany, and Oriskany squadron patches appear on Maverick’s iconic flight jacket. For many divers, that connection adds another layer of fascination when hovering over the carrier’s flight deck nearly 150 feet beneath the surface.

Notable Film History

  • The Bridges at Toko-Ri (1954): The Oriskany served as the primary filming location for this Oscar-winning Korean War classic starring William Holden and Grace Kelly. F9F Panther jets and the ship’s actual crew were featured in the movie, which prominently displayed the carrier’s hull number, “34”. [1, 2, 3, 4]
  • Top Gun (1986): The carrier is deeply tied to the Top Gun franchise. The character Viper tells Maverick that he served on the “Mighty O” with Maverick’s father. Additionally, Maverick’s iconic G-1 flight jacket is a clear homage to William Holden’s character’s jacket in The Bridges at Toko-Ri. [1, 2]
  • 4 for Texas (1963): The Oriskany made a cameo in this Rat Pack western comedy starring Frank Sinatra and Dean Martin. [1]
  • The Deadly Mantis (1957): The 1950s sci-fi/horror classic utilized stock footage of the Oriskany for its Navy sequences. [1]

From Warship to Artificial Reef

After decommissioning in 1976, the Navy eventually selected the Oriskany to become an artificial reef. Following extensive environmental remediation, the ship was intentionally sunk on May 17, 2006, settling upright on the Gulf floor. At the time, it became the largest vessel ever intentionally sunk as an artificial reef.

Rather than disappearing into history, the carrier began a new mission—creating habitat for marine life and a world-class destination for scuba divers.

What Makes this Dive Special?

Numbers alone barely convey the scale of the wreck. The USS Oriskany measures approximately 888 feet long with a 129-foot beam, making it larger than many modern skyscrapers laid on their side. The wreck sits upright in roughly 212–220 feet of water, with the highest point of the island structure beginning at about 84 feet. The famous angled flight deck rests around 145–150 feet, while the hangar bay lies near 175 feet.

For advanced recreational divers, the island structure offers an extraordinary dive while remaining above the 130-foot recreational limit. Divers can explore radar platforms, bridge areas, and portions of the superstructure while watching schools of amberjack circle the tower.

For technical divers, the flight deck is the main attraction. Descending through blue water, the enormous angled deck slowly materializes below, revealing catapult tracks, arresting gear, and the unmistakable silhouette of a Cold War aircraft carrier. The hangar bay and lower compartments provide even deeper penetration opportunities for properly trained teams.

USS Oriskany sinking near Pensacola c. 2006

USS Oriskany being sunk near Pensacola, FL on May 17, 2006 to form an artificial reef.

Divers explore the USS Oriskany's super-structure

Divers exploere the super-structure of the USS Oriskany.

The Descent Diver's Never Forget

Ask anyone who has dived the Oriskany what they remember most, and many will describe the first glimpse of the island appearing from the blue.

Unlike many wrecks that emerge gradually from the bottom, the carrier rises dramatically toward the surface. One moment you are descending through open Gulf water; the next, a steel tower the size of a building appears beneath you. The scale can be difficult to comprehend until you are hovering beside the bridge windows or finning along the edge of the flight deck.

Because the site is 22–26 miles offshore, conditions are often clearer than many nearshore Gulf wrecks, and pelagic life is common. Amberjack, snapper, grouper, barracuda, and occasional cobia or king mackerel frequently patrol the wreck, while the carrier itself has become a thriving artificial reef covered in sponges, corals, and schooling fish.

Why the Oriskany Belongs on Every Diver's Bucket List

The USS Oriskany offers something few dive sites in the world can match: a complete story.

  • She served the United States in two wars and earned seven battle stars.
  • She became part of Top Gun history through Maverick’s family story and iconic flight-jacket patches.
  • She was intentionally transformed into one of the world’s most famous artificial reefs in 2006.
  • She now provides multiple dive profiles, from advanced recreational exploration of the island at 84–124 feet to technical dives on the flight deck and hangar bay below 145 feet.

Diver's descent on onto the USS Oriskany

The “Mighty O” becomes visible as divers descend upon her structure. 

USS Oriskany c. 1962

The USS Oriskany c. 1967

ReefSmartGuides_Oriskany-Dive_Site

This Reef Smart Guide of the USS Oriskany accurately depicts her sitting upright 212 FT of water.

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