🔄 Updated 21 Jun 2026
First, the honest bit: Khanom isn't in the provincial town. It's about 100 km north of Nakhon Si Thammarat city, roughly an hour and a half to two hours by car. If you fly into Nakhon Si Thammarat airport, budget time for the drive north. Flying into Surat Thani is actually closer, since Khanom sits right on the Surat Thani border. So this plan assumes you'll stay overnight in Khanom rather than driving back to the city each day — that way you get the sea both morning and evening.
Wheels matter most here
Khanom has almost no local public transport, and the sights — Khao Plai Dam, Thong Yi Beach, the dolphin pier — are spread across different corners. Renting a car or a motorbike and driving yourself is the most convenient and best-value option. Pick up a rental at the airport or in the city from the start, because they're hard to find in Khanom itself. Cars start at around 900–1,400 THB a day depending on the model. The coastal road is winding and narrow in places, so drive carefully and you'll be fine.
The beach plan at a glance
This plan is laid out as a relaxed three days, two nights, but if you're short on time you can cut it to two days, one night and keep just the dolphins and Khao Plai Dam as the core. The heart of the trip is getting up early enough for the dolphin boat, because the pink dolphins only feed in the early morning. Go too late and the waves pick up, the sun gets harsh, and they're harder to spot.
- Day 1 — Travel up to Khanom, check in at a beachfront stay, then drive the Khao Plai Dam coastal road and Thong Yi Bay in the afternoon, catch the sunset, and have seafood by the beach in the evening.
- Day 2 — Up very early for the pink-dolphin boat trip at Ao Thalet and Ban Khao Ok, back to relax at the beach, then visit Nai Phlao Beach or the Ao Thalet wooden pier in the afternoon.
- Day 3 — In the morning, catch the spots you haven't seen yet, like Suan Ta San or the rubber-tree tunnel, then head home before noon and pick up some local treats on the way.
- Rough budget per person — beachfront stays split out to about 500–1,200 THB a night, a chartered dolphin boat runs about 1,000–1,500 THB (split between 8–10 people), and food is around 300–600 THB a day. All in, three easy days come to roughly 2,500–3,500 THB once you share the car and boat costs.
Book the activities in your Nakhon Si Thammarat trip ahead
Booking online ahead on Klook or GetYourGuide is usually cheaper than the gate and skips the queue. Pick only the experiences you actually want — prices and availability are shown live on each site.
Day 1 — Up to Khanom & the Khao Plai Dam coastal road
Day one is mostly travel, plus driving the coastal road in the late afternoon into evening, when the light is best and it isn't so hot. Khao Plai Dam is a seaside mountain right on the boundary between Khanom and Sichon districts — locals call it the southern sea dragon. You drive along the cliff face looking down on deep-blue water with Koh Samui floating in the distance. Plenty of people rate it the prettiest stretch of road on the southern Gulf of Thailand coast.
Up to Khanom + the coastal road
Straight talk about Khao Plai Dam
Khao Plai Dam really is beautiful, but it's a cliffside road, not a viewpoint with a big parking lot. The photo stops are narrow shoulders — drive slowly and pull off clear of the bends, never stop in the middle of the road. In the rainy season the road gets slippery and fog rolls in, dropping visibility a lot. If you're coming in the wet months, check the weather first.
Day 2 — The pink-dolphin boat trip
This is the trip's highlight. Khanom is one of the most reliable places in Thailand to see pink dolphins — a genuine wild pod that lives in this bay, not dolphins in a pen. They come out to feed in the early morning when the water is calm and the swell is light. Boats leave from the piers on the Ao Thalet and Ban Khao Ok side. You can book ahead with a community-tourism group; a chartered boat runs about 1,000–1,500 THB and seats roughly 8–10 people, so split between you it's not expensive.
Pink dolphins + the beach
About the dolphins — straight up
Pink dolphins are wild animals. Your chances are good, but no one can guarantee it. If the waves are up or it rains, boats may not go out. Book ahead and keep your expectations realistic. Most important: don't pick a boat that chases or crowds the pod, because it stresses the dolphins and goes against conservation practice. Choose a community-tourism group that handles this responsibly — it's better for you and for the dolphins.
Day 3 — The last few spots before you head back
Save the last day for the quiet corners you haven't reached yet, then head back around midday. If you've only got two days and one night, just drop this day — the core of the trip, the dolphins and Khao Plai Dam, is already covered in the first two days.
Quiet corners + heading home
Where to stay in Khanom
For a beach trip like this you should stay right on the beach in Khanom rather than driving back to the city. The main lodging area is Nai Phlao Beach, with seaside resorts, homestays and budget options — from rooms in the hundreds to resorts with a pool around 2,000 THB. The upside: you can make the dawn dolphin boat in time and walk to the seafood spots easily. If you want it quieter, choose the Thong Yi Beach side, which sees fewer people — but the restaurants and food options thin out to match.
Nai Phlao Beach (recommended)
Khanom's main beach, with plenty of stays across all price levels. Walking distance to Khanom Seafood and the beachside spots, close to the dolphin pier, and the easiest base for getting around.
Thong Yi Beach
Quieter and less crowded, for those who really want calm. Close to Khao Plai Dam, but with few restaurants and convenience stores, so you'll want your own wheels.
Browse our hand-picked hotels in Nakhon Si Thammarat before you book this trip
See the Top 10 Nakhon Si Thammarat hotels →Tips to keep your Khanom trip smooth
- Book the dolphin boat ahead — especially on weekends and in high season, when community boats are limited. Contact the Ban Khao Ok tourism group or have your hotel help arrange it. Going out at dawn gives you the best odds of seeing dolphins.
- Come in the dry season — the sea is at its prettiest with little rain from around January to April: light swell, clear water, boats out every day. Late in the year, October to December, is the southern rainy season, with bigger waves and boats that may not run.
- Bring cash — local restaurants, boat fees and many souvenir shops take cash or bank transfer. ATMs in Khanom are scarce, so withdraw extra in the city.
- Sun protection — the sun is strong both on the boat and on the beach. Pack sunscreen, a hat, sunglasses and a light long-sleeve shirt; there's no shade on the boat.
- Respect nature — don't drop litter in the sea or on the beach, don't let the boat chase the dolphins, and carry your trash back to shore. Khanom is still clean because few people have come through — let's keep it that way.
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