Koh Langka Jiew is one of the most renowned islands within Mu Ko Chumphon National Park, located about 12 kilometers offshore from Hat Sai Ri Beach. Though small in size, this island holds great historical and ecological significance, offering both natural beauty and cultural value.

The island is home to several natural limestone caves, the most famous being the cave with King Chulalongkorn’s (Rama V) royal monogram (Chor Por Ror) engraved on its rock face. His Majesty visited the island during his royal journey to the southern provinces in 1887 (B.E. 2430). The carved inscription remains well-preserved and is considered an important historical landmark symbolizing the King’s connection with Chumphon’s coastal communities.

Beyond its royal heritage, Koh Langka Jiew is also a bird’s nest concession island, where swiftlet nest harvesting has been practiced for generations. Due to this concession, strict environmental protection is enforced, ensuring that the island’s pristine condition and delicate ecosystems remain undisturbed. This conservation effort has resulted in clear blue waters, lush vegetation, and thriving coral reefs surrounding the island.

The western and southern sides of Koh Langka Jiew are famous snorkeling spots featuring fringing coral reefs teeming with marine life such as staghorn corals, plate corals, brain corals, sea anemones, and colorful tropical fish like clownfish and parrotfish. The crystal-clear visibility and vibrant underwater scenery make it a photographer’s paradise and a must-visit destination for snorkeling enthusiasts.

Most visitors explore Koh Langka Jiew through one-day snorkeling tours that include other islands in the Chumphon archipelago—such as Koh Ngam Yai and Koh Ngam Noi—before returning to the mainland in the late afternoon. There are no facilities, restaurants, or accommodations on the island, as it is part of a protected conservation zone. Visitors are advised to bring essential supplies such as water and snacks, and to strictly follow park regulations to help preserve the island’s natural and historical heritage.

• By Private Car: Drive to Chumphon Province and head toward Hat Sai Ri Beach or Pak Nam Chumphon Pier, the main departure points for island tours. Park your car near the pier and take a speedboat or tour boat to the island (about 40–60 minutes).

• By Public Transport: Take a bus or train to Chumphon Bus Terminal or Chumphon Railway Station. From there, hire a taxi or local songthaew to the pier at Hat Sai Ri Beach. Purchase a one-day snorkeling tour package that includes Koh Langka Jiew as part of the route.

• The island is open to visitors from 8:00 AM to 5:00 PM only. No access is allowed outside these hours.

• During the swiftlet nesting season (around May–August), the island may be temporarily closed to visitors. Check with tour operators in advance.

• Bring essential items such as a hat, sunscreen, water, and light clothing—there are no shops or facilities on the island.

• Entry to the royal inscription cave usually requires a park ranger or guide for safety and preservation reasons.

• Ideal for travelers seeking a serene, unspoiled destination with rich natural and historical appeal.

Entrance Fee

Entrance to the Mu Ko Chumphon National Park (paid at the visitor center on the mainland)(Boat tour fees not included)

• Thai citizens: Adults 40 THB, Children 20 THB

• Foreign visitors: Adults 200 THB, Children 100 THB

Opening Hours

• Accessible from 8:00 AM – 5:00 PM (Tour departure and return times may vary depending on each tour operator.)