Welcome to Koh Samaesarn
Koh Samaesarn, a dream island destination for nature lovers, beachgoers, and snorkeling enthusiasts. Recognized as one of the top attractions in Sattahip, Chonburi, it welcomes both Thai and international tourists. Whether you are traveling with family or joining a group tour, this guide covers everything you need to know. Discover the best attractions, travel methods, and must-do activities for an unforgettable trip.
Read More: [Exclusive Samaesarn Snorkeling Tours with Samaesarn Guide]
Where is Koh Samaesarn?
Koh Samaesarn is located in the Samaesarn Sub-district of Sattahip, Chonburi—just a short drive from the famous tourist hub, making it a perfect getaway near Pattaya. Covering an area of about 5 square kilometers, it is 1 of 9 islands in the Plant Genetic Conservation Project initiated by Her Royal Highness Princess Maha Chakri Sirindhorn. It serves as a marine eco-tourism and nature study center. Thanks to its strictly preserved environment, it is a paradise for those who love pristine nature, vibrant coral reefs, and world-class snorkeling.
Samaesarn vs. Koh Samaesarn: What’s the Difference?
Many tourists mistakenly think ‘Samaesarn’ and ‘Koh Samaesarn’ are the exact same place. Let’s clear that up:
- Samaesarn (The Mainland): This is the coastal sub-district in Sattahip where the locals live. Here, you will find hotels, seafood restaurants, cafes, police stations, and the piers.
- Koh Samaesarn (The Island): This is the offshore island itself. There are no local residents and no overnight accommodations allowed. The island is maintained and developed exclusively by the Royal Thai Navy. To visit the island, you must take a boat from the Samaesarn mainland.
A Brief History of Koh Samaesarn
According to local legends, over 50 years ago, Koh Samaesarn was inhabited by a traditional fishing community. Eventually, the villagers relocated to the mainland (current-day Samaesarn sub-district). Since 1998, under the royal initiative of HRH Princess Sirindhorn, the island was transformed into a protected eco-tourism and educational site, ensuring its natural beauty remains untouched for generations to come. https://thailandtourismdirectory.go.th/attraction/21563
How to Get to Samaesarn
First, you need to travel to the Samaesarn mainland. You can get here via private car, bus, or by flying into U-Tapao International Airport, which is only 10-15 kilometers away. Since Koh Samaesarn sits in the middle of the Gulf of Thailand and has no bridge or airport, the only way to reach it is by boat. You have two options:
- Private Tour Boats: Best for customizable snorkeling trips around the islands. (👉 Click here for Private Snorkeling Trip)
- Navy Passenger Boats: Specifically for transferring visitors to Koh Samaesarn for on-island activities.
How to Book Boat Tickets to Koh Samaesarn
Samaesarn Guide recommends preparing your tickets in advance. Here are the ticket prices and how to secure them:
Online Booking (Tours & Packages)
Booking online is the easiest method. You can browse all-inclusive snorkeling packages via SamaesarnGuide.com for a hassle-free experience with plenty of exclusive activities.(👉 See our packages: Private, Join-in, or Large Group)
On-Site Ticket Counter (Navy Boats)
If you only want to cross to the island, you can buy tickets at the Thai Island and Sea Natural History Museum in Samaesarn. Queue Cards: Handed out starting at 06:00 AM. Ticket Sales: Begin at 08:00 AM.
GPS Location: [https://maps.app.goo.gl/Cp5Va9u7MSxwVVgY6?g_st=ic]
Navy Boat Ticket Prices (Island Entry)
- Thai Adults: 300 THB
- Thai Children (Under 18): 220 THB
- Small Children (Under 110 cm): FREE
- Foreigners (Adults & Children): 600 THB
Top Things to Do & Activities on Koh Samaesarn
Once you arrive on the island, a world of eco-friendly adventure awaits! Please note: There are no private car rentals or overnight stays. Koh Samaesarn is strictly a day-trip destination.
1.Explore Pristine Beaches
The island features three stunning beaches: Luk Lom Beach, Toey Beach, and Tien Beach. With their long stretches of white sand and crystal-clear water, they are perfect for a relaxing picnic. Grab your favorite drink, sit back, and enjoy the rich flora and fauna.
2.Snorkel with Local Samaesarn Experts
A visit here isn’t complete without exploring the underwater world. The water is so clear that you can often see corals from the boat! Join a local snorkeling tour to discover hard and soft corals, marine life, and swim with the famous clownfish at Nemo Island. Local guides know the best-hidden spots and act more like travel buddies than standard tour operators.
3.Walk the Thai Sea Flora Botanical Garden
Take a break from the water and stroll through this easy-to-walk nature trail. It is suitable for all ages and features educational signs about coastal plants and local wildlife. The viewpoints offer a peaceful escape you won’t find in the city.
4.Chill with a SUP Board
Stand Up Paddleboarding (SUP) is a massive hit here. With calm waves and mirror-like clear water, especially in the morning or late afternoon, it’s incredibly easy even for beginners. Paddle out, take drone-like photos, and share some laughs with your friends.
5.Glass-Bottom Boat Tour
Perfect for families, the elderly, or those who prefer not to swim. Sit back, stay dry, and watch the magnificent underwater ecosystem unfold right beneath your feet—like watching a live nature documentary!
Best Time to Visit Koh Samaesarn
(Read the full guide: Samaesarn Snorkeling Seasons: When is the water the clearest?)
High Season (November – May)
The sea becomes calm, and the water is incredibly clear. This is the ultimate season for snorkeling and exploring the Nemo Island marine life. Tourism peaks in April, so booking your tours and accommodations well in advance is highly recommended!
Green Season (June – October)
Traffic flows easily, and the crowds thin out. While there is a higher chance of occasional rain, it is the perfect time for travelers seeking peace, privacy, and an uncrowded nature retreat. Just remember to check the weather forecast before you travel.
Conclusion: Your Samaesarn Adventure Awaits
Koh Samaesarn is more than just an island; it is a sanctuary to rest your mind and recharge with pure nature. From thrilling coral reef dives and glass-bottom boats to relaxing under coastal trees, we hope this guide makes planning your trip a breeze. Ready to set sail? Book a premium, authentic snorkeling trip with Samaesarn Guide today.! See you in Samaesarn
