Heian Maru was a Converted submarine tender and was sunk during Operation Hailstone
This short article about the Heian Maru wreck is to provide you with a few basic details about this Japanese World War II ship. The Heian Maru is one of the many Truk Lagoon wrecks for scuba divers to dive in Chuuk Lagoon.
Truk Lagoon wreck Heian Maru was sunk by American aircraft at Chuuk Lagoon during Operation Hailstorm in 1944. The Heian Maru is the largest of Chuuk’s “Ghost Fleet” wrecks and was a converted submarine tender, but originally a Japanese ocean liner weighing 11,614 tons and 155 metres (510 ft) long.
The best way to dive Truk Lagoon is by a scuba diving liveaboard. You can check the latest and best deals on Truk Lagoon liveaboards using the following window:
The wrecks are now dived by scuba divers from across the world.
Truk Lagoon dive liveaboards table
This list of Truk Lagoon liveaboards is in descending customer rating order, followed by Scuba Diving Luxury Rating (SDE Lux Rating, see below), so the liveaboards with the highest customer rating and the best SDE lux rating will be at the top of the list. If you want to change the list order, use the “Sort by” dropdown below.
|Discover Liveaboard||Customer Rating||SDE Lux Rating %||Flexible Booking||Dive Courses||Dietary Requirements||Nitrox||Gear Rental|
|Review: SS Thorfinn; Book: SS Thorfinn||8.8||88%||YES||YES||YES||YES||YES|
|Review: MV Truk Master; Book: MV Truk Master||7.9||65%||YES||NO||YES||YES||YES|
|Review: MV Pacific Master; Book: MV Pacific Master||0||56%||YES||YES||YES||YES||YES|
The Scuba Diving Earth Luxury Rating (SDE Lux Rating) is explained on each liveaboard review when you click the “Discover Liveaboard” link, and is my own Liveaboard Luxury Rating I’ve assigned to all liveaboards. Choosing between liveaboards is helped by customer scores, and if you get stuck choosing between two or three liveaboards, where each one has a high customer score out of 10, you can use the SDE Luxury Rating to help narrow down your choice.
Think about it like using Booking.com when searching for the best hotel. Booking.com also use a customer score where each customer rates hotels out of 10. This is similar to the liveaboard customer rating, which is also rated out of 10. But let’s say you only like to stay in hotels rated 8 and above on Booking.com, but you also want the hotel to have WIFI or parking, or to have a swimming pool etc. The features each hotel has is usually secondary to the score out of 10.
Details of Heian Maru the largest Truk Lagoon wreck
- Heian Maru was a Japanese ocean liner launched in 1930.
- Heian Maru was a converted submarine tender.
- Weight of 11,614 tons.
- She was 155 metres (510 feet) in length.
- Had a beam of 20 metres (66 feet).
- The Heian Maru is the largest of all the Truk Lagoon Wrecks.
- Maximum dive depth of 34 metres (110 feet).
- Minimum dive depth of 15 metres (50 feet).
The word ‘Maru’ in Japanese ship naming protocol designates a merchant vessel. Ironically the Heian Maru operated NYK line’s trans-Pacific service between Yokohama and Seattle, USA before the war.
It was only just before the outbreak of the Pacific War of World War II that this commercial liner was requisitioned by the Imperial Japanese Navy to be converted into an auxiliary submarine tender.
Comments on Heian Maru ship wreck
- Largest wreck in Truk lagoon.
- Heian Maru has a large deck gun on the stern.
- She lies 457 metres (500 yards) west of Tonoas (Dublon).
- To see the location of the Heian Maru on a map, please follow this link to: Truk Lagoon wreck map.
- A passenger-Cargo Ship, she was built in 1930 at a cost of $15,000,000 (which in today’s terms would be $227,000,000!).
To understand more about what happened at Truk Lagoon, please take a read of this article what happened at Truk Lagoon in 1944.
Heian Maru Truck Lagoon wreck video
This is a video of Heian Maru truck Lagoon wreck.
I hope you enjoyed this article about Heian Maru ship wreck of 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 Heian Maru wreck of 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!