Ang Thong by Private or Semi-Private Boat: Options, Prices, and How It Compares

Ang Thong Marine National Park is usually sold as a day trip on a shared boat with 20, 40 or more other people. That's fine for most visitors — but if you'd rather not share the viewpoint climb and the lunch stop with a full boatload of strangers, there are private and semi-private options too. Here's what each one actually gets you, and what it costs, checked against the live listings.

The three ways to see Ang Thong from Koh Samui

The park entrance fee (300 THB for adults, 150 THB for children) is separate from the tour price on every option above — it's paid on the island, not included in what you book.

What "semi-private" actually means here

Semi-private doesn't mean private — it means a smaller, capped boat instead of the standard big boat. The premium semi-private speedboat is limited to a maximum of 14 guests, against the dozens who can be on the economy big boat. In practice that means less time queuing to get off the boat, a shorter line at the viewpoint climb on Koh Wua Talap, and a hotel pick-up window instead of a rigid single departure time. It also leaves earlier than the shared speed boats — around 08:30 instead of the more crowded later departures — so you tend to reach the first snorkelling stop with fewer other boats already there.

What you don't get compared to the fully private option: you're still travelling with other paying guests you didn't choose, and the itinerary still runs on the operator's schedule, not yours.

from 4,750 THBAngthong Marine Park Premium Semi Private Speedboat Tour★★★★★4.71 from 38 reviews

What "private" actually buys you

The private speed boat tour is a flat price for the boat, not a per-person rate — booked for a family or group of friends, with a private transfer from your hotel (no other passengers picked up along the way) and a private boat once you're on the water. The listing is explicit that there's no cruise ship availability for this one; it's built around hotel pick-up. Beyond the exclusivity, the itinerary covers the same stops as the shared tours: snorkelling, the Emerald Lagoon walk on Koh Mae Koh, and the Koh Wua Talap viewpoint climb — the difference is timing flexibility and not sharing the boat, not a different set of islands.

from 32,950 THBFull Day Private Speed Boat Tour - Angthong Marine Park★★★★★5.00 from 18 reviews

There's also a step up from that: a luxury full-day private trip on a higher-spec boat, for anyone who wants the private format with a nicer vessel.

from 46,950 THBLuxury Full Day Trip Angthong Marine Park

Is it worth the price difference?

Run the numbers for a family of four: the economy big boat costs around 5,000 THB total, the semi-private option around 19,000 THB for four people, and the private boat a flat 32,950 THB regardless of how many of you go (up to the boat's capacity — confirm the exact limit when you book). For two people travelling together, semi-private at roughly 9,500 THB combined sits much closer to the private price than it looks per person, which is why groups of two or three often find the fully private boat the better value, while solo travellers and pairs on a budget are usually happiest on semi-private or even the standard big boat.

What doesn't change with price: the islands, the entrance fee, and the weather. A private boat can't out-climb a squall on Koh Wua Talap or make the lagoon clearer on a cloudy day — see our guide on what happens if your Ang Thong tour gets cancelled for weather before you commit to the highest-priced option too far in advance.

Frequently asked questions

How much does a private boat to Ang Thong cost?

The private speedboat tour from Koh Samui is a flat 32,950 THB for the boat (not per person), with a step up to 46,950 THB for the luxury version on a higher-spec boat. The park entrance fee (300 THB adult / 150 THB child) is extra in both cases.

What is the difference between a private and semi-private Ang Thong tour?

Semi-private means a smaller shared speedboat capped at 14 guests instead of the large economy boat — you still travel with other paying guests. Private means your own boat and a private hotel transfer with no other passengers, at a flat price rather than per person.

How many people fit on a semi-private Ang Thong speedboat?

The premium semi-private option is capped at a maximum of 14 guests per boat, based on the current listing.

Is a private boat to Ang Thong worth it?

It depends on group size. For a family or a group of three or more, the flat price often works out close to what a semi-private booking would cost per person anyway, so the exclusivity comes at a smaller premium than it first looks. Solo travellers and couples on a budget usually get most of the same experience for far less on the semi-private or standard big boat.

For the standard shared-boat version of this trip — including the entrance fee, the seasonal park closure and what to pack — see our full Ang Thong National Park day trip guide. Booking through a licensed local operator rather than an unverified contact matters here too; see how to spot legitimate tour operators in Thailand.