Landing Craft Unit (LCU)
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
The Landing Craft Unit, or L.C.U., is a wreck on the west side of Oahu, very close to the 29 Down wreck. It lies at 60 to 80 feet (20 to 27 metres), with visibility of 60 to 120 feet (20 to 33 metres), and is listed as a dive for advanced divers.
The ship sank upside-down, so fish can be seen swimming upside-down near what is now the bottom of the hull. White-tip reef sharks live under the ship and rest on the sea floor in the daytime. Around the wreck are many Z-blocks, put there by the state as artificial reefs to boost fish populations.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Saddle WrasseThalassoma duperreyReported here · unconfirmed
Green Sea TurtleChelonia mydasReported here · unconfirmed
Dusky SurgeonfishAcanthurus nigrofuscusReported here · unconfirmed
Hawaiian Spotted TobyCanthigaster jactatorReported here · unconfirmed
Orangeblotch SurgeonfishAcanthurus olivaceusReported here · unconfirmed
Belted WrasseStethojulis balteataReported here · unconfirmed
Blackfin ChromisPycnochromis vanderbiltiReported here · unconfirmed
OctopusOctopusReported 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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