Tonoas (Dublon) Island
Tonoas
The base of the Imperial Japanese Navy's Fourth Fleet headquarters in WWII; the island still has the remains of a hospital, command post and seaplane base
Known in Japanese as Natsu-jima (Summer Island), it was home to a branch office of the South Seas Government and a naval base during the mandate period. The island holds the ruins of a Japanese military hospital, an army headquarters, a seaplane ramp, fuel depots and gun emplacements, all surrounded by tropical vegetation. It is about 20 minutes by boat from Weno. A local guide is recommended, and you should seek permission from the landowners, since most remains are on private land and a small entrance fee is usually charged. A visit can be combined with the surface break between wreck dives.
Opening hours
Daytime, by boat tour
Nearby sights
- I-169 Submarine Wreck
- Heian Maru Wreck
- Betty Bomber Wreck
- Shinkoku Maru Wreck
- Eten Island
- Fujikawa Maru Wreck
- San Francisco Maru Wreck
- Fefan Island