Koh Kham Island also known as Koh Kham Underwater Park, is a small island located west of Koh Samaesarn in Chonburi Province. The island is under the supervision of the Royal Thai Navy’s Fleet Operations Command, which places strong emphasis on environmentally responsible tourism alongside strict natural resource conservation. As a result, Koh Kham has preserved its pristine environment and remains rich in natural beauty.A distinctive feature of Koh Kham is its unique shape, resembling the letter “H.” The island features two white sandy beaches connected by a natural sandbar. The surrounding sea is remarkably clear, allowing visitors to see rocks and coral reefs beneath the water directly from the shoreline. This creates a peaceful and visually stunning atmosphere, making the island an ideal destination for true relaxatio

What truly sets Koh Kham apart is its rich marine ecosystem. The waters surrounding the island have been designated as an underwater park to protect various coral species, including staghorn coral, table coral, and brain coral, as well as sea anemones that serve as habitats for numerous species of clownfish. This makes Koh Kham both a natural learning site and a popular destination for snorkeling enthusiasts. Another iconic feature of the island is the wooden coastal walkway, which stretches along the rocky shoreline. This walkway serves as both a scenic walking path and a favorite photography spot, designed to allow visitors to enjoy the seaside views without disturbing the natural ecosystem

The atmosphere on Koh Kham is private and tranquil due to the limitation on the number of visitors allowed each day. Popular activities include snorkeling, kayaking, and glass-bottom boat tours for those who prefer not to enter the water. All activities are carefully managed under the concept of responsible and sustainable tourism. In addition, the island offers many scenic photo spots, such as the wooden bridge, white sandy beaches, natural rock formations, and a small hilltop viewpoint that requires only a short walk but rewards visitors with a beautiful panoramic view of the island. Koh Kham is suitable for general travelers, couples, and families seeking a peaceful nature-based getaway

Beyond being a leisure destination, Koh Kham serves as a marine learning center where youth and interested visitors can study coral cultivation and coastal conservation firsthand. The simplicity of the island, devoid of luxury facilities or large buildings, reflects a strong commitment to preserving the original charm of the Eastern Sea. Taking a moment to stand still and listen to the waves crashing against the rocks amidst the fresh air can wonderfully recharge one's energy. It is a destination that truly welcomes everyone with the smiles of Navy officials and the clarity of the water. We invite you to be part of this creative tourism to pass on the abundance of the undersea world to future generations.

• By Private Car: Drive to Khao Ma Chor Pier near the Thai Island and Sea Natural History Museum parking is available.

• By Public Transport: Take a van or minibus (Bangkok-Sattahip line) to Sattahip town, then take a blue songthaew to the pier.

• Crossing to the Island: Purchase tickets at the booth near the pier (arriving early is recommended due to visitor limits)

• Best Visiting Season: Accessible year-round, but the most beautiful period is November – April when the wind is calm and the water is at its clearest.

• Preparation: Bring towels, a change of clothes, and Reef Safe sunscreen, as well as beach shoes.

• Photography: The viewpoint at the top is stunning; allow 15–20 minutes to hike up for high-angle shots.

• Food & Culture: Welfare shops sell snacks and drinks, but foam containers and excessive plastic waste are strictly prohibited.

• Travel Planning: The island is a military zone; no overnight stays are permitted. Check boat schedules in advance as the island may close during bad weather

Admission Fee:

• Includes round-trip boat and island fees

• Thai Visitors: Adult 300 THB, Child 250 THB 

• Foreign Visitors: Adult 600 THB, Child 500 THB

Opening Hours:

• Ticket Sales: 08:00 – 11:00 (Or until tickets are sold out)

• Last Boat Departure from Island: 16:00