Scuba Season
Underwater at Irako Maru Wreck
Green turtle confirmed 4 days ago

Irako Maru Wreck

Apo Reef · Philippines

Imperial Japanese Navy food supply and refrigeration ship sunk by US carrier aircraft on 24 September 1944 — Coron's deepest signature wreck. The 147 m hull rests virtually upright between 28 and 43 m, tilted slightly to port and almost fully intact. Penetration runs through the wheelhouse, the engine room with its four large diesels, the galley with stove still in place, and crew bunkrooms reached via a stern hull opening near the rudder at 40 m. Schooling jacks shadow the bow, longfin batfish drift around the mast, and groupers and stingrays settle on silted decks.

Conditions

Depth

28 to 43 m

Advanced depths

Current

Often strong

Can pick up on the edge

Visibility

5 to 12 m

Clearest in the calm season

Water

27 to 30°C

Tropical wetsuit

Month by month

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Water (°C)272727282828282727272727
Vis (m)15152020158558101515
CurrentModerateModerateModerateModerateModerateModerateStrongStrongStrongModerateModerateModerate

Your chances of seeing each animal

See all species recorded here →

Gear

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 3mm full wetsuit · warm water
    • Dive computer
  • For this site

    • Primary plus backup dive light · Engine room, galley and stern crew compartment penetrations sit in full darkness, requiring redundant lights.
    • Technical dive computer · 43 m bottom and multilevel deco profile mean Nitrox planning and conservative gradient factors are standard practice on this wreck.
    • Wreck reel and SMB · Coron currents and the long upright hull demand a guideline for penetration and an SMB for blue water ascents.