Japanese Shipwreck, Ranong

“ Japanese WWII shipwreck at 12–18 m depth, suitable for both scuba diving and snorkeling, rich with corals and marine life near Koh Khangkhao, peaceful and unseen. ”

Japanese shipwreck near Koh Khangkhao is located within Laem Son National Park, close to Koh Khangkhao in the Mu Ko Kam archipelago. It is considered one of the most significant historical dive sites in Thailand’s Andaman Sea.

The vessel is believed to have been a Japanese military supply ship used during World War II. At the time, the Andaman Sea served as a strategic route for transporting troops and resources across Southeast Asia. The ship was later attacked by Allied forces and sank in this area.

The wreck measures approximately 50–60 meters in length and now rests at a depth of around 12–18 meters. Much of the main steel structure remains visible, including sections of the hull, deck framework, and cargo holds. Despite natural corrosion over time, the wreck still retains its form, making it accessible for exploration—especially during calm sea conditions with good underwater visibility.

Ecologically, the wreck has evolved into an important artificial reef. Both soft and hard corals, along with marine sponges, have grown extensively over the structure, attracting a wide variety of marine life. Divers can encounter species such as batfish, groupers, fusiliers, and many smaller reef fish. At times, large schools of fish can be seen swimming around the wreck, creating a dynamic and visually striking underwater scene.

For diving, the site is suitable for beginners to intermediate divers due to its moderate depth. However, currents can occasionally be strong, so diving with a guide or instructor is recommended. A typical dive begins by descending along a guide line to the wreck, followed by a loop around its main structure, usually lasting around 30–45 minutes per dive.

Overall, the site offers an atmosphere similar to an “underwater museum,” where wartime history and marine biodiversity blend seamlessly. It remains one of Ranong’s hidden Unseen dive spots, valued for its tranquility and lack of crowds compared to more famous diving destinations.

Street Art
While there is no street art at the wreck site due to its marine environment, Ranong Old Town features murals that reflect local history, culture, and lifestyle—such as the iconic “Rod Phothong” (local transport vehicle). Visitors can explore these artworks before heading out to the dive site, enriching the overall travel experience.

How to Get There

By Car: Take Highway No. 4 (Phetkasem Road) toward Kapoe District, then turn onto the road leading to Laem Son National Park. The distance is 45–60 km and takes approximately 45–60 minutes.