Nippo Maru
Location guideChuuk Lagoon

Nippo Maru

2142 madvanced+wreckscoral○ Out of season

Planning a trip?

Hotels, dive operators, gear, and how to get here are on the Chuuk Lagoon location page.

Overview

Japanese armed water-and-supply transport sunk during Operation Hailstone in February 1944. She sits upright with a list to port, holds packed with war materiel — artillery shells, sea mines, gas masks and crockery. A Japanese light tank still rests on the deck and three field howitzers lie aft; the bridge telegraph and ship’s helm remain in place. Hard and soft coral now sheath the railings, with the shallowest mast around 21 m and the deck near 30 m.

Briefing note

Deck at ~30 m and the tank near 38 m make this a deep dive; bottom is ~42 m. Penetration requires wreck certification. Live ordnance and human remains are present — show respect and take nothing.

What you'll see

4 species curated
  • Glassfish
    year-round
  • Lionfish
    year-round
  • Batfish
    year-round
  • Whitetip reef shark
    year-round

Conditions

MonthWaterVisibilityCurrent
Jan2830 °C1525 mmild
Feb2830 °C1525 mmild
Mar2830 °C1525 mmild
Apr2830 °C1525 mmild
May2830 °C1525 mmild
Jun2830 °C1525 mmild
Jul2830 °C1525 mmild
Aug2830 °C1525 mmild
Sep2830 °C1525 mmild
Oct2830 °C1525 mmild
Nov2830 °C1525 mmild
Dec2830 °C1525 mmild

Season calendar

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Peak season highlighted · current month outlined

Gear for this site

Beyond the basic kit
  • Dive lightBridge, holds and engine room penetration — primary plus backup.
  • ComputerDeep multi-level wreck with the tank near 38 m — Nitrox recommended.

Next step

Book your trip to Chuuk Lagoon

Hotels, liveaboards, dive operators, gear recommendations, and travel logistics for the whole region.

Plan your trip →

Some links earn us a commission. Learn more