Liveaboard Diving in Iro Maru Wreck
What to expect on an Iro Maru Wreck Liveaboard
Liveaboards to the Iro Maru wreck means exploring probably the most famous wreck in Palau. It is 143m (470ft) long and the deck lies at 25m (85ft) below the surface. This Japanese navy oiler sank back in 1944 right next to one of its sister ships after an attack while it was on its way from Micronesia to the Philippines. It is located at Urukthapel Anchorage, 15 minutes southeast off the coast of Koror. When liveaboard diving at the Iro Maru Wreck you'll notice the visibility can vary a lot, at its best it will be around 30m (100ft) and at its worst 10m (30ft). The visibility is very much dependent on the number of divers because there is a lot of thick sediment under, around on, and on the wreck, which if disturbed, will decrease the visibility. There are luckily no currents in this area to stir up the sediment making an Iro Maru Wreck liveaboard the perfect addition to your Palau itinerary.
It is very important to be a confident diver to dive here, there are a lot of dangers involved with diving in a wreck, so confidence is key. If you want to penetrate the wreck, then you do need to have a wreck diver certification. Most liveaboards that go around Palau will visit Iro Maru. As it is close to the coast it is generally one of the first or one of the last sites the liveaboard will visit.
What You Can see
Firstly, what makes this wreck impressive is that it is still standing upright, so you get a complete view of the ship. Over the many years of this ship being underwater, it has created its own, very remarkable little ecosystem. The deck is filled with zigzag clams, oysters, invertebrates of many species but especially Nudibranchs. There are numerous amounts of corals that have grown on and around the ship such as Mushroom Corals, Staghorn Corals, Brain Corals, and Lettuce Corals. There is also an impressive collection of Black Coral Trees growing here.
You will encounter many schools of colorful fish, but some of the most colorful marine life here are the anemones that are all around, inhabited by the charming tomato clownfish. Apart from marine life, there are still a lot of WWII artifacts, including some live ammunition, so it is VERY important to not touch anything in this wreck. There are also still two large guns, one located on the stern and the other on the bow.
Getting to Iro Maru Wreck
To get to this site, or to get to any Micronesia liveaboards which will be visiting this area, you will need to make your way to Koror, which is the largest city in Palau. The airport is located on the island of Babeldaob which is connected by a bridge to Koror. The airport is called The Roman Tmetuchl International Airport. There are only five destinations that have outgoing flights to Palau, so you would have to fly to one of these first; Philippines, Taiwan, South Korea, Japan, and Guam. Once in Palau, all Iro Maru Wreck liveaboards will depart from the Malakal Harbour in Koror.
Iro Maru Wreck Diving Reviews
- 9.5 Exceptional
- 10.0 Exceptional
- Sahiba S
- India
Pretty cool. I’m not a big wreck diver, and the visibility was not great, but it was incredible to see how covered in coral it has become.
Diving Iro Maru Wreck in December on the Solitude One
- 9.6 Exceptional
- Luis L
- Canada
Great wreck. You can penetrate it in several places.
Diving Iro Maru Wreck in March on the Palau Aggressor II
- 9.6 Exceptional
- Fraser G
- Canada
Decent wartime wreck. Swam through one torpedo hole, and along the deck, but didn't really enter the wreck in any meaningful way.
Diving Iro Maru Wreck in March on the Palau Aggressor II
- 9.2 Superb
- Tymur V
- United States
It was an okay wreck dive. Anemones on the spire was the highlight
Diving Iro Maru Wreck in February on the Palau Aggressor II
- 9.6 Exceptional
- Henry D
- United States
Birds nest was interesting. Rest of the wreck was nothing special.
Diving Iro Maru Wreck in February on the Palau Aggressor II
- 9.2 Superb
- Yuka F
- Japan
Less visibility but well reserved.
Diving Iro Maru Wreck in January on the Palau Aggressor II
- 9.6 Exceptional
- Steven C
- Germany
It is an interesting world war two wrack. You can hardly see the canons as they are covered with corals and the artifacts have been removed, but still a nice dive.
Diving Iro Maru Wreck in September on the Palau Aggressor II
- 10.0 Exceptional
- Jason C
- United States
The history for this wreck is interesting and there was a lot of colorful life on the night dive
Diving Iro Maru Wreck in December on the Palau Aggressor II
- 9.6 Exceptional
- Daniel B
- United States
Weather played a significant role, but visibility was poor, and We actually lost sight of everyone for large portions of the dive.
Diving Iro Maru Wreck in February on the Palau Aggressor II
- 9.2 Superb
- Neville D
- United Kingdom
Vis was not to good so did not see a lot of the wreck
Diving Iro Maru Wreck in December on the Solitude One
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