Reefwander
A dark, overgrown wreck stern rises from a pale sandy bottom in shallow blue water, with a diver in the distance — Gosei Maru, Chuuk Lagoon.

Chuuk Lagoon · Micronesia · Wreck

Gosei Maru

Shrimp and goby burrows in the sand under the propellers

Photo: montereydiver · CC BY 2.0

Gosei Maru is a small coastal freighter of 1937, at 82 m (270 ft) one of the smaller wrecks in Chuuk Lagoon, sunk by a single torpedo. It lies on its port side with the stern in shallow water, which allows long bottom times around the propellers and the sand beneath them.

Also known as Gosei.

Where it is and how deep

Depth profile of Gosei Maru: typical dive 3–34 m (10–112 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit3 m34 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

No published position for this site — the map shows Chuuk Lagoon and its other sites; operators know the mooring.

The dive

The freighter lies on its port side with the stern between 9 and 3 m (30 and 10 ft) and the bow much deeper, down to 34 m. Being this shallow at the stern, it allows longish bottom times.

Under the propellers, the sand is riddled with holes busy with blind shrimp and their goby partners. Near the stern there are also props and china to find.

The wreck

Vessel
Gosei Maru
Type
Coastal freighter
Length
82 m (269 ft)
Built
1937
Sunk
1944
Cause
Sunk by a single torpedo
Lies
On its port side, stern at 3 to 9 m, bow much deeper

Marine life and season

  • Macro critters
Month-by-month season rating for Gosei Maru
JanFebMarAprMayJunJulAugSepOctNovDec
PrimePrimePrimeGoodGoodFairFairFairFairGoodGoodPrime

Season follows Chuuk Lagoon: December to April is the dry season, driest from January to March; June to September brings the heaviest rain.

Dive videos

Diving the wreck of Gosei Maru - Truk Lagoon 2018 · Rod Macdonald on YouTube

Sources

  1. Gosei Maru — Dive3D.eu
  2. Gosei Maru — wrecksandreefs.com
  3. Wrecks — Truk Stop Hotel

Photo credits

More dive sites in Chuuk Lagoon

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Submarine periscopes still stacked in the holds

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A Japanese cruiser submarine sunk at its anchorage

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