Scuba Dive The Sankisan Maru Truk Lagoon Wreck (Top Wrecks To Scuba Dive)

The Sankisan Maru wreck was a 112 metres (370 feet) 4,776 ton Japanese cargo ship

This short article about the Sankisan Maru wreck provides you with a few basic details about this Japanese World War II ship. She is one of the many Truk Lagoon wrecks for scuba divers to enjoy in Chuuk Lagoon (formerly Truk Lagoon).

Scuba dive the Sankisan Maru Truk Lagoon Wreck: The Sankisan Maru wreck of Truk Lagoon is a top recreational dive as it has a maximum depth of 30 metres (100 feet). There’s plenty of artefacts and coral life to explore, including scattered ammunitions, trucks, plane parts and bottles. Located near Uman island in Chuuk Lagoon.

Truk Lagoon is the name these Pacific lagoons and islands were known as in 1944 when they were under Japanese occupation. However, the name of Truk Lagoon was changed in 1990 to Chuuk Lagoon.

Scuba divers seem to use these two names synonymously, but the correct name is Chuuk Lagoon. These famous wrecks are now dived by scuba divers across the world.

Details of Sankisan Maru the largest Truk Lagoon wreck

The Sankisan Maru wreck was a cargo ship. Interestingly enough, it is thought that she was originally owned by the Americans. At the time it is said her name was the Red Hook.

The story goes that the Japanese captured Red Hook in 1942. However, subsequent research suggests that the Sankisan Maru that lies at the bottom of Truk Lagoon is a different ship to this.

  • Sankisan Maru was requisitioned by the Japanese army to transport military personal and supplies.
  • Her aft is at a depth of 15-30 metres (49-100 feet).
  • This wreck is sitting upright.
  • The stern section (which was blown apart) is at 48 metres (160 feet).
  • The stern section of the ship is about 60 metres (200 feet) away from the aft section.
  • Most of her aft section is missing, which was due to the huge explosion that occurred when she was finally sunk.
  • She was sunk on 18th February 1944 after being hit by a torpedo.
  • You’ll see from the video below that the fore ship and masts have beautiful coral growth and plenty of fish life.
  • This makes the Sankisan Maru one of the best coral sites in Truk Lagoon.
  • But if you’re also interested in World War II artefacts, this is a great Truk Lagoon wreck to dive.
  • You’ll see trucks with their tyres still intact), plane parts, scattered bullets and ammunition, ink and medicine bottles.
  • She was a 112 metres (370 feet) 4,776 ton Japanese cargo ship.

Scuba dive Truk Lagoon and Sankisan Maru wreck by liveaboard:

Comments on Sankisan Maru Truk Lagoon wreck

The Sankisan Maru wreck was sunk off the western shore of Uman Island, which can be seen on the Truk Lagoon wreck map. She was first attacked on 17th February 1944 during Operation Hailstone in World War II.

But it was on 18th February 1944 that she was finally sunk when she was hit by a torpedo in the aft holds. Because the Sankisan Maru was effectively a floating bomb, when the torpedo hit her there was a massive explosion. At the time of this hit the Japanese captain had already abandoned her with his crew onto the shores of Uman.

Similar to the Yamagiri Maru she makes a great recreational diving wreck, as she’s not one of the deep wrecks of Truck Lagoon. This is because she is less than 40 metres (131 feet) deep.

However, 30 metres (100 feet) is still deep enough to severely limit your bottom time. But if you use Nitrox on your dive, at 33-34% your bottom time can be up to 39 minutes based upon a no stop decompression dive.

This assumes you can make your air last that long at this depth. But you may need to consider twin-set dive tanks. But also make sure you conserve your air well.

Sankisan Maru video

This is a video of Sankisan Maru Truk Lagoon wreck:

I hope you enjoyed this article about Sankisan Maru Truk Lagoon

I’d love to hear from you. Tell us about your adventures of diving and snorkeling, in the comments below. Please also share your photos. Either from your underwater cameras or videos from your waterproof Gopro’s!

If this article hasn’t answered all of your questions. If you have more questions either about snorkeling or scuba diving (or specifically about Sankisan Maru Truk Lagoon), please comment below with your questions.

There will also be many more articles about scuba diving (and snorkeling) for you to read and learn about these fabulous sports.

Have fun and be safe!

Scuba Dive The Sankisan Maru Truk Lagoon Wreck (Top Wrecks To Scuba Dive)

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