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Experience the pristine beauty of 42 islands, hidden emerald lagoons, and panoramic limestone peaks with our curated selection of premium boat expeditions.
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Hand-picked experiences loved by thousands of travelers
Explore 42 islands by speedboat with snorkeling, kayaking, and panoramic hikes in a stunning marine paradise.
Explore the wonders of Ang Thong Marine Park with snorkeling, island trekking, and a scenic buffet cruise.
Explore Ang Thong’s hidden lagoons and reefs on a classic Thai yacht with small-group luxury.
Explore the wonders of Angthong Marine Park with snorkeling, island hiking, and kayaking during this full-day speedboat excursion.
Explore Ang Thong’s hidden lagoons and vibrant reefs on an intimate speedboat adventure limited to 16 guests.
Escape the crowds with an early-start catamaran tour through the stunning Angthong Marine Park, featuring kayaking and snorkeling.
All the details about your upcoming adventure in one place
Ang Thong National Marine Park is a breathtaking archipelago of 42 islands located roughly 28 kilometers from Koh Samui. Established in 1980, this protected marine sanctuary is famous for its towering limestone cliffs, thick jungle, and 'Talay Nai'—a stunning inland saltwater lagoon known as the Emerald Lake. Tours from Koh Samui cater to every traveler, ranging from budget-friendly big boat cruises that offer stability and space to high-speed luxury catamarans and private yachts for a more intimate experience. Whether you are hiking to the world-renowned viewpoint at Wua Ta Lap, kayaking through ancient sea caves, or snorkeling in secluded coves, these tours provide an unparalleled escape into Thailand's natural wonders.
We only list tours from operators with proven safety records and high service standards, primarily partnering with industry leader Viator
Make informed decisions using thousands of detailed reviews and photos from real travelers who have explored the marine park
Instead of hundreds of identical options, we filter for the best value, unique itineraries, and superior boat quality
Manage your booking, change dates, or cancel easily through a unified interface with 24/7 customer support access
We prioritize tours that offer small-group or semi-private experiences to help you avoid the midday crowds at popular spots
No hidden pier fees or national park taxes that aren't clearly disclosed—see exactly what is included before you pay
February to April (Best visibility and calmest seas)|May to September (Good weather, occasional afternoon rain)|November to December (Park Closed)
Swimwear worn under light clothing|Sturdy walking shoes for viewpoints|Hat and sunglasses|A dry bag for electronics during kayaking
The area was once a restricted zone for the Thai Navy before being declared a National Marine Park in 1980.
A wide-angle lens is essential for capturing the vastness of the archipelago from the viewpoints. Use a circular polarizer to cut through the water's surface reflection for better lagoon photos.
Most tours offer a full refund if cancelled at least 24 hours before the scheduled start time. In case of bad weather, the operator will offer an alternative date or a full refund.
Share your experience: #AngThongNationalPark #KohSamui #ThailandTravel #IslandHopping #EmeraldLagoon #AngThongMarinePark #SamuiLife
Real experiences from real travelers
The small group tour was worth every penny. We beat the crowds to the Emerald Lagoon and our guide was incredibly knowledgeable about the local ecology. The food on board was better than some restaurants in Bophut!
The hike to the top of Wua Ta Lap is no joke—it's very steep and hot. But the view from the 500m mark is the best in Thailand. The big boat was very stable which was great for my motion sickness.
We booked the semi-private yacht and it was the highlight of our Samui trip. Kayaking through the caves felt like being in a movie. The sunset on the way back was magical.
Great communication from start to finish. Pickup was on time and the speedboat was modern and clean. Snorkeling wasn't the best compared to Koh Tao, but the scenery made up for it.
Well organized tour. The Emerald Lake is beautiful but be prepared for many stairs. Lunch was traditional Thai and very tasty. Highly recommend the speedboat for more time at the islands.
Took our two teenagers on the big boat tour. Plenty of space to move around and they loved the kayaking. It's a long day but very well paced.
We booked a private speedboat for my wife's birthday. The crew went above and beyond, finding us a private beach for lunch. Truly a five-star service.
The scenery is just breathtaking. Even if you don't do the hard hikes, just sitting on the boat and seeing the islands pass by is worth it.
Everything you need to know for your journey
The park is best visited between February and October when the seas are calm. Note that the park usually closes every year from November to late December for environmental recovery and due to monsoon season weather.
Most tour prices do NOT include the entry fee (typically 300 THB for adults, 150 THB for children). This is usually collected in cash by your guide on the day of the tour.
If you are prone to motion sickness, we recommend booking a 'Big Boat' tour as they are much more stable than speedboats. Most operators also provide sea sickness pills (Dramamine) at the pier before departure.
Yes, the tours are family-friendly. However, speedboats can be bumpy for very small children, and the steep hikes at Wua Ta Lap are not suitable for toddlers. Big boats offer more space for families to relax.
Yes, there are a few basic bungalows and campsites managed by the National Park on Wua Ta Lap island. These must be booked in advance through the National Park website, and you can arrange a boat drop-off with most operators.
Speedboats get you to the islands faster (approx. 45-60 mins), allowing more time for activities, but can be a bumpy ride. Big boats take longer (approx. 90-120 mins) but offer more comfort, a sun deck, and a more stable experience on the water.
Snorkeling in Ang Thong is decent but generally not as clear as Koh Tao. The park is more famous for its spectacular scenery, kayaking, and viewpoints rather than its underwater visibility.
The hike involves steep limestone steps and some rope climbing at the top. We strongly recommend wearing sturdy sneakers or hiking sandals rather than flip-flops.
Yes, almost all our partner operators provide vegetarian and vegan options. Please ensure you specify your dietary requirements in the 'special requirements' box during the booking process.
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