USS Spiegel Grove
Conditions & tides
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Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
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About this site
USS Spiegel Grove is a 510 ft (155 m) dock landing ship wreck off Key Largo in the Florida Keys, reached by dive boat from Key Largo marinas. It is one of the largest artificial reefs in the world and a headline wreck dive.
The 6,880-ton ship was intentionally sunk in 2002. At the time of its sinking it was the largest vessel ever deliberately sunk as an artificial reef.
The wreck sits upright on the seabed in 130 ft (40 m) of water, with the top of the superstructure at about 65 ft (20 m). It is 84 ft (26 m) wide and has multiple decks, interior passages and swim-throughs. Carefully enlarged openings allow penetration for experienced divers, and the exterior hull and superstructure offer plenty to explore.
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Conditions and who it suits. The current is variable, and it can be strong. The level is advanced to expert, and wreck dives in the area require Advanced Open Water certification or equivalent. Bottom times vary with depth and air consumption.
Wrecks in the Keys are blanketed in coral, sponge and algae, with goliath groupers, barracuda, sharks, sea turtles and dense schools of reef fish.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Bull sharkBull sharkReported here · unconfirmed
AngelfishAngelfishReported here · unconfirmed
StingrayStingrayReported here · unconfirmed
Sea turtleSea turtleReported here · unconfirmed
Reef sharkReef sharkReported here · unconfirmed
Bull SharkCarcharhinus leucasConfirmed present · 2 independent sources
ParrotfishParrotfishReported here · unconfirmed
GrouperGrouperConfirmed present · 3 independent sources
BarracudaBarracudaConfirmed present · 3 independent sources
Caribbean Bluehead WrasseThalassoma bifasciatumReported here · unconfirmed
Redband ParrotfishSparisoma aurofrenatumReported here · unconfirmed
Bicolor DamselfishStegastes partitusReported here · unconfirmed
Striped ParrotfishScarus iseriReported here · unconfirmed
Brazilian Ocean SurgeonfishAcanthurus bahianusReported here · unconfirmed
Slippery DickHalichoeres bivittatusReported here · unconfirmed
Clown WrasseHalichoeres maculipinnaReported here · unconfirmed
Atlantic Blue TangAcanthurus coeruleusReported here · unconfirmed
Yellowhead WrasseHalichoeres garnotiReported here · unconfirmed
Yellowtail SnapperOcyurus chrysurusReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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