Yuttanavi Memorial Monument at Ko Chang is situated at the southern tip of Koh Chang eastern coast at Hat Sai Yao, a strategically significant historical area. Surrounded by azure waters and steep mountain ranges, this site was established to commemorate the heroic naval battle between the Royal Thai Navy and French naval forces on January 17, 1941, during the Indochina Conflict. It stands as a profound chapter in history, showcasing the sacrifice and courageous defense of Thai national sovereignty.

The spiritual and historical centerpiece of this site is the Monument of Prince Abhakara Kiartivongse, Prince of Chumphon, revered as the Father of the Thai Navy. The statue stands majestically, facing the sea toward the exact direction where the actual battle took place. Within the memorial grounds, there are also exhibits regarding HTMS Thonburi, HTMS Chonburi, and HTMS Songkhla, the warships that fought valiantly before sinking during the engagement. The atmosphere is solemn and deeply imbued with the living spirit of history.

The experience for visitors here is distinct from typical tourist beaches, as it emphasizes tranquility and reflection. The coastal area is exceptionally quiet, ideal for somber walks to pay respects to the fallen heroes and learning through outdoor exhibits. Every year on January 17, official ceremonies and merit-making rites are held, during which the memorial is filled with vibrant devotion and red roses offered by visitors.

The historical remnants present on this site serve as physical evidence connecting us to the naval battle of the past. The layout of the memorial is designed to align with the sinking locations of the three royal warships in the sea ahead. Visitors can spend time studying the combat routes and military equipment data through systematically organized exhibition boards around the base of the monument to understand the actual events that transpired.

Beyond its commemorative role, this site functions as a Naval Strategic Learning Center, illustrating the maritime defense planning during World War II that subsequently influenced the definition of Thailand's maritime boundaries. Standing here helps travelers understand the importance of "Koh Chang" as the final bastion protecting the eastern waters, rather than just a natural retreat. It serves as a place to record the national unity that preserved sovereignty and acts as a reminder of the sacrifices that led to today's peace.

The Koh Chang Naval Battle Memorial stands as an essential landmark preserving the honor of the Royal Thai Navy. It is a significant anchor reminding us of the history of national defense. Visiting here is an act of showing respect to the spirits of the naval warriors and learning about the crucial events that have shaped the Thai nation to the present day.

• By Private Car: From the ferry pier, turn left towards southern Koh Chang (the east coast). Follow the main road to the end at Ban Jek Bae and continue to Hat Sai Yao. The distance is approximately 30 km from the pier.

• By Local Transport: Private songthaew rentals are recommended as this is a remote area with no regular scheduled public transport reaching the site.

• Additional Option: Taking a chartered boat from Salak Phet Bay to land at Hat Sai Yao is a popular alternative for those wishing to enjoy the coastal scenery.

• Best Visiting Season: January is the most significant month due to the memorial ceremonies, but the site is peaceful year-round. Morning visits are recommended to avoid the afternoon heat.

• Attire: Please dress respectfully as this is a sacred and historical memorial site.

• Conduct: Please remain composed and maintain quiet within the memorial grounds to respect the site and other visitors.

• Local Food & Culture: Nearby communities in Salak Phet and Jek Bae offer authentic local seafood restaurants at reasonable prices.

• Planning: The road to southern Koh Chang can be narrow and winding; drive carefully and allow 45-60 minutes for the journey from the pier.

Admission Fee:

• No Admission Fee.

Opening Hours:

• Open daily: 07:00 – 18:00