An Ang Thong Marine Park day trip from Koh Samui costs from ฿1,530 per adult (฿970 per child) on the join-in big boat, or from ฿2,100 per adult (฿1,590 per child) on the VIP speedboat. A private speedboat charter for the whole boat starts at ฿38,010 for up to 10 guests. The national park entrance fee is included in all of these prices — nothing to pay at the park.
That is the honest headline number. Below is what actually sits behind it: what each boat includes, what you will still spend on the day, and how the per-person maths changes once your group gets past four people.
Ang Thong tour prices from Koh Samui — the 2026 table
| Option | Price | Group | Day length |
|---|---|---|---|
| Big boat (join-in) |
฿1,530 per adult ฿970 per child |
Large, shared | 8–9 hours |
| VIP speedboat (join-in) |
฿2,100 per adult ฿1,590 per child |
Max 16–30 guests | Full day |
| Private speedboat charter |
฿38,010 per boat (1–10) ฿56,710 (11–20) · ฿70,650 (21–30) · ฿84,490 (31–40) |
Your group only | Full day |
| Sailing cruise (join-in) | See product page | Shared, wooden sailing boat | Full day |
Infants travel free on both join-in boats. Every price above is the price you pay when you book direct — there is no platform commission layered on top.
See every option side by side on the Ang Thong Marine Park tours from Koh Samui page — big boat, VIP speedboat, sailing cruise and private charter, all with live “From” prices.
What ฿1,530 actually buys you (the big boat)
The Angthong Marine Park Big Boat Tour is the cheapest way to see the park and it is not a stripped-back product. From ฿1,530 per adult you get hotel pickup and drop-off, the full-day cruise, a light breakfast on board, a Thai buffet lunch with drinking water, the Emerald Lagoon on Koh Mae Koh, the viewpoint hike and beach time on Koh Wua Talap, a snorkelling stop with mask and snorkel provided, life jackets, an English-speaking guide and crew, and basic accident insurance.
The trade-off is time and company. It is an 8–9 hour day with roughly 1.5 hours of cruising each way, on a boat with a lot of other travellers. Pickup runs 07:15–08:00 and you are back at your accommodation between 17:00 and 18:00. There is plenty of shaded deck, so the length is comfortable — it is simply a slower, more social day than the speedboat.
What the extra ฿570 buys you (the VIP speedboat)
The Angthong Marine Park VIP Speedboat Tour at ฿2,100 per adult / ฿1,590 per child buys back travel time. The speedboat is capped at 16–30 guests, the crossing is much shorter, and the day fits in more stops with less sitting on a deck. Pickup is 07:30–08:30, return is usually 17:00–17:30. Included: air-conditioned van transfers, light breakfast and refreshments at the departure pier, Thai buffet lunch with water and soft drinks, snorkelling with gear, the Emerald Lagoon viewpoint, free time on Koh Wua Talap, life jackets, guide and insurance.
Be honest with yourself about the ride. The live product description says it plainly: expect bumpy sections when the sea is choppy, and the trip is not suitable for pregnant guests, babies, or anyone with serious back or neck problems. If that is your group, the big boat is the better ฿1,530.
When does a private charter make sense?
The Angthong Marine Park Private Speedboat Charter is ฿38,010 per boat for 1–10 guests, then ฿56,710 for 11–20, ฿70,650 for 21–30 and ฿84,490 for 31–40. That is a per-boat price, not per person — the most common pricing mistake people make when comparing.
Do the division. At 10 guests, ฿38,010 works out to ฿3,801 each. Against the ฿2,100 VIP speedboat, you are paying roughly ฿1,701 extra per head for exclusive use of the boat, a flexible itinerary designed with the captain, and no fixed group schedule. At 18 guests, ฿56,710 is about ฿3,151 each — the gap narrows as the group grows. Below about six people, the join-in boats win on price by a wide margin and the private charter is bought for privacy, not value.
What is NOT in the price
This is where day-of budgets go wrong, so read it carefully. The national park entrance fee (300 THB per adult and 150 THB per child) is not on this list: it is included in every Ang Thong price.
- Kayaking on the big boat is an optional add-on rather than an inclusion: ฿350 per adult and ฿200 per child.
- Alcoholic drinks, and on the big boat soft drinks are sometimes charged separately.
- Towels — bring your own on every boat.
- Remote hotel supplement. Standard pickup covers the main areas of the island; guests staying well outside them may pay a supplement or be asked to meet at a central point.
So a realistic all-in figure for two adults on the big boat is about ฿3,060 for the day, park fees included, before drinks and optional extras.
The one date rule that decides everything
Ang Thong is a national park and it typically closes from 1 November to 15 December each year. If your holiday falls in that window, no price matters — the park is shut and you will need a different sea day. The Koh Tao & Koh Nang Yuan day trip (฿2,100 per adult / ฿1,750 per child) and the half-day Pig Island & Koh Tan speedboat trip (฿1,490 per adult / ฿1,270 per child) both run year-round and are the usual substitutes.
Is the cheapest option the wrong option?
No, and we would rather say so than upsell. Ang Thong is a landscape day — 42 limestone islands, the Emerald Lagoon, the viewpoint climb, kayaking through karst. It is not a reef destination. If your priority is coral and clear water, spending more on an Ang Thong speedboat is money in the wrong place; you want the Koh Tao trip instead. If your priority is the scenery and you do not mind a long, social day, the ฿1,530 big boat delivers the same islands as the ฿2,100 speedboat.
Pay the extra when you are short on holiday days, when sitting still for nine hours will ruin the day for your group, or when you want more time in the water and less time cruising.
There is also a fourth option: a full-day Angthong sailing cruise on a traditional wooden sailing boat, with breakfast and Thai buffet lunch on board and swim stops in sheltered coves. It is the most relaxed way to reach the park. Its current rate is shown on the product page.
Ang Thong tour prices — frequently asked questions
How much does an Ang Thong Marine Park tour cost from Koh Samui in 2026?
From ฿1,530 per adult (฿970 per child) on the join-in big boat, or from ฿2,100 per adult (฿1,590 per child) on the VIP speedboat. A private speedboat charter is ฿38,010 for the whole boat for up to 10 guests. Infants are free on the join-in boats. The national park entrance fee is included in all of these prices.
Is the Ang Thong national park entrance fee included in the tour price?
Yes. On every Ang Thong option the park entrance fee (300 THB per adult and 150 THB per child) is included in the price you pay at booking, so there is nothing to pay at the ranger station.
Is the big boat or the VIP speedboat better value for Ang Thong?
Both visit the same places — the Emerald Lagoon on Koh Mae Koh, the Koh Wua Talap viewpoint, and a snorkelling stop — and both include hotel transfers, breakfast, Thai buffet lunch, gear, guide and insurance. The big boat costs ฿1,530 per adult and runs 8–9 hours with about 1.5 hours cruising each way in a large group. The VIP speedboat costs ฿2,100 per adult, is capped at 16–30 guests, and spends less of the day travelling. Pay the extra ฿570 for time and comfort, not for different islands.
How much is a private Ang Thong boat charter from Koh Samui?
฿38,010 for the whole boat for 1–10 guests, ฿56,710 for 11–20, ฿70,650 for 21–30 and ฿84,490 for 31–40. These are per-boat prices, not per person. At 10 guests that is about ฿3,801 each, roughly ฿1,701 more per head than the join-in VIP speedboat, in exchange for exclusive use of the boat and an itinerary you set with the captain.
How much does an Ang Thong day trip cost for a family of four?
Two adults and two children come to ฿5,000 on the big boat (2 × ฿1,530 plus 2 × ฿970) or ฿7,380 on the VIP speedboat (2 × ฿2,100 plus 2 × ฿1,590). The park entrance fees for the four of you (900 THB) are already included; the only extra to plan for is ฿350 per adult or ฿200 per child if you want to add kayaking on the big boat. Infants travel free.
When is Ang Thong Marine Park closed?
Ang Thong is typically closed from 1 November to 15 December each year. No tour of any price runs during that window. If your trip falls in it, the year-round alternatives from Koh Samui are the Koh Tao and Koh Nang Yuan snorkelling day trip at ฿2,100 per adult / ฿1,750 per child, or the half-day Pig Island and Koh Tan speedboat trip at ฿1,490 per adult / ฿1,270 per child.
