Yes — wild pink dolphins live along the Khanom coastline, about a half-day speedboat trip from Koh Samui, and the best-known way to look for them is a boat tour that combines the dolphin search with two other stops: Pancake Rock and Pig Island. They are not actually pink from birth — they are Indo-Pacific humpback dolphins, a species that turns pale pink as it matures, which is why local guides and tour operators call them "pink dolphins." Sightings are never guaranteed on any wildlife tour, in Khanom or anywhere else, but this stretch of coast is one of the few places in the Gulf of Thailand where they are regularly seen.
This guide covers where the dolphins actually are, when conditions are usually best for the crossing, and the two real ways to book the trip from Koh Samui — join-in speedboat or private charter — with 2026 prices for both.
Where are Thailand's pink dolphins?
The population most tours from Koh Samui visit lives along the coastal waters near Khanom, in Nakhon Si Thammarat province on the Thai mainland, across the Gulf of Thailand from Samui. Khanom is one of the most consistent spots in the country to look for Indo-Pacific humpback dolphins, which is why it has become a dedicated half-day excursion rather than a stop bolted onto an unrelated itinerary.
These are wild animals in open water, not a marine park or a feeding pool — the boat searches known areas where the dolphins are commonly active, and sightings depend on the animals' own movements that day. Any operator who guarantees a sighting is overselling it; what a good tour can guarantee is time spent looking in the right places, with a crew that does this regularly.
When is the best time to see pink dolphins in Khanom?
Like most boat trips on this side of the Gulf of Thailand, conditions matter more than the calendar. The dry season, roughly December through April, generally brings calmer seas and better visibility on this coast, which makes for a more comfortable crossing and easier spotting conditions. The monsoon window, roughly October to December, can bring rougher seas that occasionally affect departures. None of this changes where the dolphins live — it changes how comfortable the boat ride is and how far you can see across the water, which does affect the odds of a sighting.
If your dates are flexible, avoid booking during a named storm or heavy monsoon warning for the Gulf coast — not because the tour won't run, but because sea conditions on a bad-weather day make any wildlife spotting harder.
How to get to Khanom from Koh Samui to see the dolphins
There is no need to arrange your own transport to Khanom — every dolphin tour from Samui includes the full round trip by speedboat, picking you up from your hotel. There are two real ways to book it:
Join-in speedboat (shared group)
The Pink Dolphin Tour from Koh Samui is a half-day trip — roughly 4–5 hours on the boat, with hotel pickup from 07:45 and the boat back at the pier around 13:20–13:40 before lunch and the drive back — priced from ฿1,750 per adult and ฿1,400 per child. The only extra is the Pig Island (Koh Madsum) entrance fee of 50 THB per person, paid in cash on the island; exact pricing by date shows at checkout. It combines the dolphin search with two more stops in one trip: Pancake Rock, a layered sea cliff near Khanom worth the photo stop on its own, and Pig Island (Koh Madsum) for beach time and snorkelling at Koh Tan. Thai lunch and hotel pickup are included.
Private speedboat charter
If you want the boat to yourselves — your own pace, your own stops, no other passengers — the Private Pink Dolphin Tour covers the same three stops (dolphin search, Pancake Rock, Pig Island) with a private speedboat and crew. It is priced per booking rather than per person: from ฿20,900 for 1–5 guests, and ฿23,900 for 6–10 guests. For a group of four or five, that works out close to the shared price per person while getting the whole boat to yourselves and full control over timing.
What else is included besides the dolphins
Both versions of the tour are built around three stops, not one, which matters if the dolphins don't show up close to the boat that day — you still get a full day out rather than a single wildlife bet:
- Pink dolphin search along the Khanom coastline, wild animals, no guarantee, no feeding, no touching.
- Pancake Rock, a distinctive layered sea cliff formation, for photos and a change of scenery.
- Pig Island (Koh Madsum), with beach time and snorkelling at neighbouring Koh Tan's coral reef.
- Thai lunch near the departure pier after the boat returns, and round-trip hotel pickup on the join-in trip; the private charter includes hotel pickup with a crew that can adjust the route on request.
Frequently asked questions
Are the pink dolphins in Khanom actually pink?
Not from birth. They are Indo-Pacific humpback dolphins, a species whose skin gradually turns pale pink as the animal matures, which is why they're nicknamed "pink dolphins." Younger dolphins in the same pod are grey.
Is seeing the pink dolphins guaranteed?
No wildlife tour can guarantee a sighting of wild animals, and Khanom's pink dolphins are no exception. The tour searches known areas where the dolphins are regularly active, but it is genuine wildlife spotting, not a feeding pool or enclosure.
How much does the pink dolphin tour from Koh Samui cost?
The shared join-in speedboat starts from 1,750 baht per adult and 1,400 baht per child. A private speedboat charter for the same three stops (dolphins, Pancake Rock, Pig Island) starts from 20,900 baht for one to five guests and 23,900 baht for six to ten guests, per booking rather than per person.
How long is the pink dolphin tour?
The join-in speedboat tour runs approximately 4 to 5 hours on the water: hotel pickup starts around 07:45, the boat leaves between 09:15 and 09:45, and it is back at the pier around 13:20–13:40, followed by Thai lunch near the pier and the drive back to your hotel.
Is hotel pickup included?
Yes. Round-trip hotel pickup on Koh Samui is included on both the shared join-in trip and the private charter.
The short answer
Khanom, a half-day speedboat trip from Koh Samui, is where to look for Thailand's wild pink dolphins — Indo-Pacific humpback dolphins that turn pale pink with age. Go in the dry season (roughly December–April) for calmer seas, book the shared speedboat trip from ฿1,750 per adult if value matters most, or the private charter from ฿20,900 per booking if you want the boat to yourselves. No sighting is ever guaranteed, but both trips include Pancake Rock and Pig Island, so it's a full day out either way.
Comparing every tour from Koh Samui side by side? See our tour comparison table for price, duration and what's included across the full catalogue, or browse every guide in our Explore Koh Samui index.
