Iro Maru Wreck Palau
Protected Area
Koror Southern Lagoon
Why dive here
With 182+ marine species recorded in the area - including barracuda, lionfish, mandarin fish, napoleon wrasse and nautiluses - Iro Maru Wreck Palau offers some of Rock Islands's richest wreck diving. Water ranges 28-30°C, warmest September, October, November.
The Iro Maru is one of those wrecks we always make time for when we're in Palau, especially if we have newer divers in the group. It’s a 143-meter oiler, sunk during Operation Hailstone in 1944, sitting upright on the seabed at a comfortable 27 meters. What we really love about the Iro is its sheer accessibility and how much there is to poke around in without needing advanced certs. You can swim through the superstructure, peer into the engine room, and even pop down into the cargo holds if you're comfortable. Light filters in through bomb damage and open hatches, illuminating schools of glassfish that swirl like silver clouds. We've seen moray eels peeking from pipes, schools of batfish circling the mast, and robust lionfish perched regally on decks. It’s an almost perfect introduction to wreck diving, with plenty of intact structure to explore and a fascinating history you can practically feel. The bow gun is always a highlight, a really stark reminder of its past. We’d suggest going in the morning; the light penetration can be magic.
Typical Iro Maru Wreck Palau Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 27m - Advanced Open Water certification recommended.
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to Iro Maru Wreck Palau
Dive shops near Iro Maru Wreck Palau
Cruise Control palau
Cruise Control palau
DayDream Dive Center
Sam's Tours
Blue Marlin
Blue Marlin
Reviews for Iro Maru Wreck Palau
Conditions
Ocean conditions, forecast and tides for Iro Maru Wreck Palau
Iro Maru Wreck Palau Ocean Conditions
Monthly averages for Iro Maru Wreck Palau, sourced from Copernicus Marine satellite data
August Averages
Sea Temperature
29.73°C
86°F
Current Speed
11.05 cm/s
Direction: N (5.2°)
Chlorophyll-a
0.033 mg/m³
Very clear (oligotrophic)
Salinity
33.59 PSU
Data sources: Copernicus Marine Service (EU)
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