If you’re looking for a day away from the beaches of Koh Samui, a boat trip to Ang Thong National Marine Park offers a chance to see some of Thailand’s most iconic scenery—craggy limestone cliffs, saltwater lakes, and lush islands.
We’ve reviewed this tour based on dozens of traveler experiences, and it’s clear this adventure attracts a lot of fans, especially those eager to combine scenic sightseeing with a touch of physical activity.
What we love most about this tour is its value for money—for around $35 you get a full day of exploring, snorkeling, and hiking. Plus, the large, stable boat makes for a comfortable ride, and the included Thai lunch hits the spot after a morning of activity.
On the flip side, one potential consideration is that the snorkeling spots may not satisfy avid snorkelers, and the itinerary can be quite busy, which might leave some feeling a little rushed.
This trip is best suited for active travelers who enjoy being outdoors, climbing viewpoints, and don’t mind a full day on the water. If you’re traveling with family or friends who want a mix of adventure, relaxation, and beautiful scenery, this tour hits most marks — just be prepared for some physical activity and a few boat transfers.
- Key Points
- What Makes This Tour Special
- Itinerary Breakdown and Why It Matters
- Stop 1: The Marine Park and Beach Activities
- Stop 2: Emerald Lake and Saltwater Lagoons
- Stop 3: Viewpoint Hikes
- Final Stop: Coastal Walks and Relaxation
- The Experience You Can Expect
- Who Should Consider This Tour
- Final Thoughts
- FAQ
- More Boat Tours & Cruises in Koh Samui
- More Tours in Koh Samui
- More Tour Reviews in Koh Samui
Key Points
- Stunning scenery: Limestone cliffs, saltwater lakes, and island vistas.
- All-inclusive value: Lunch, drinks, and snorkeling gear are included.
- Active elements: Opportunities to hike to viewpoints and kayak.
- Time well balanced: Activities are spaced out to prevent feeling rushed.
- Weather considerations: Tour proceeds in all but unsafe weather conditions.
- Group size: Up to 150 travelers, so expect a lively atmosphere.
What Makes This Tour Special

The highlight of this trip is the chance to explore the unspoiled beauty of Ang Thong National Marine Park, an archipelago with over 42 islands. The journey begins early—pickups start around 7:15 am—giving you a head start on the day’s adventures. The large, comfortable boat whisks you across the sea with plenty of room to relax and take in the scenery, a step up from some smaller, less stable vessels.
Your first stop is the main attraction—the marine park itself, where you can relax on pristine beaches or dive into the crystal-clear waters with snorkeling gear provided. Several reviews highlight the well-organized nature of the trip, with many praising the smooth transfers from boat to shore and the plentiful space onboard. The lunch is a Thai-style meal, with many reviewers noting its tastiness and adequacy, often including vegetarian options.
A key feature of the trip is visiting Thalay Nai or the Emerald Lake, a saltwater lake surrounded by towering limestone cliffs. This site alone offers a unique experience—standing on limestone formations and contemplating one of the most photogenic spots in the park. For those seeking a physical challenge, climbing the Wua Talap Hill to get panoramic views is a must. Several reviews mention this climb as rewarding but demanding, with some opting to visit only a few viewpoints if tired.
You can also read our reviews of more boat tours in Koh Samui
Itinerary Breakdown and Why It Matters

Stop 1: The Marine Park and Beach Activities
The tour kicks off with a cruise to the marine park, where travelers can swim, snorkel, or kayak. The water’s clarity receives high praise, making it easy to admire marine life close to shore. Snorkeling gear is included, but some reviews note that the snorkeling isn’t as spectacular as in other locations like Koh Tao, because the waters are shallow. Still, it’s a fun, accessible way to see fish and coral.
Stop 2: Emerald Lake and Saltwater Lagoons
Next, the group visits Thalay Nai or Emerald Lake—a saltwater lake encircled by dramatic limestone cliffs. This site is a favorite among travelers, with many describing it as a “feature of the trip” worth the effort. The chance to stand in a saltwater lake, surrounded by jungle and cliffs, offers exceptional photo ops and a sense of solitude amid nature’s raw beauty.
Stop 3: Viewpoint Hikes
The most talked-about part is the climb to the viewpoints on Wua Talap Mountain. With six viewpoints, the walk is moderate to challenging, especially in the heat. The first few viewpoints are accessible for most, but reaching the topmost platform (at roughly 500 meters) requires reasonable fitness. Several reviews detail the stunning vistas that reward your effort, with one reviewer describing climbing as “a workout” but “absolutely worth it.” For those less inclined, only visiting the lower viewpoints remains an option, allowing everyone to enjoy the scenery without overexertion.
Final Stop: Coastal Walks and Relaxation
The last part of the day may include a brief stop at a beach or lagoon, where swimming might be restricted during low tide. Some travelers mention that they didn’t get much time at each site, but the careful timing ensures you see the highlights without feeling hurried.
The Experience You Can Expect

Most reviews agree that the smooth boat ride, delicious lunch, and well-organized schedule make this trip enjoyable. The group size of up to 150 means it’s lively but not overwhelming, and the friendly staff helps keep everyone comfortable.
You’ll appreciate the attention to detail, like the provision of snorkeling gear, the easy transfer from boat to shore, and the thoughtful inclusion of water and fruits throughout the day. The trip is weather-dependent—it proceeds in bad weather only if it’s safe, so check the forecast before you go.
Many travelers mention that the trip moves at a steady pace, giving ample time for each activity. If you’re adventurous, you’ll love the hiking to viewpoints and kayaking—though some note that sea conditions can be rough, making kayaking more challenging.
In terms of value, considering the full-day experience with meals, equipment, and transfers included, the price is hard to beat. It’s an efficient way to see some of Thailand’s most stunning scenery without needing to organize multiple separate excursions.
Who Should Consider This Tour

This tour appeals to active travelers who enjoy walking, climbing, and spending time on the water. It’s perfect if you want to see diverse landscapes and marine environments in a single day. Families with children who are comfortable with physical activity might find it suitable, but beware of the climb to viewpoints, which demands a certain fitness level.
If you’re looking for a relaxing day with minimal effort, this might not be the best fit, especially since the hiking and kayaking are significant components. However, if you’re keen to combine scenic vistas, outdoor adventure, and local Thai cuisine, this trip offers great value and a chance to make some memorable moments.
Final Thoughts

This Ang Thong Marine Park Big Boat Tour from Koh Samui offers a comprehensive, reasonably priced way to experience Thailand’s natural beauty. Its well-organized schedule, friendly staff, and scenic stops make it a popular choice among travelers seeking an active day trip. The inclusion of lunch, snorkeling gear, and water enhances the value, and the variety of activities—hiking, kayaking, swimming—ensures there’s something for all.
It’s best suited for adventurous, outdoor-loving visitors who don’t mind a full day on the water and some physical exertion. For those who enjoy stunning viewpoints and unique landscapes, this tour is an excellent way to see the diverse beauty of Ang Thong without breaking the bank.
Ang Thong National Marine Park Tour by Big Boat from Koh Samui
FAQ

How early does the tour start?
The tour begins around 7:15 am, so be prepared for an early start to maximize your day.
Is the tour suitable for children?
It’s suitable for children who are comfortable with walking, climbing, and water activities. Keep in mind the hike to viewpoints can be demanding for younger children.
What should I bring?
Bring suitable shoes for trekking (sport shoes recommended), a towel, sunscreen, extra clothes for changing, and perhaps a hat for sun protection.
Are all activities included?
Most activities, including swimming, snorkeling, and kayaking, are included. However, entrance fee to the national park is not included.
What about the weather?
The tour proceeds in all but unsafe weather conditions. If canceled due to weather, you’ll be offered a different date or a full refund.
Can I choose to skip the viewpoints?
Yes, you can opt to visit only the lower viewpoints if climbing the higher ones feels too strenuous.
How long is the boat ride?
It takes about 1.5 hours to reach the islands, with some reviews noting the boat is slow but spacious and comfortable.
Is there a guide during the trip?
While the trip is well-organized, it’s more of a group excursion than a guided tour, with no dedicated guide explaining the sites in detail.
What’s the quality of the food?
Reviewers generally find the onboard lunch tasty and filling, with vegetarian options available if noted at booking.
How many people typically go on this tour?
The maximum group size is around 150 travelers, making it a lively but manageable experience.
To sum it up, if you want a day filled with breathtaking scenery, outdoor activities, and Thai hospitality, this tour to Ang Thong Marine Park is a solid choice. It balances adventure and comfort, offering good value for a memorable island escape.

























