The Thai beach holiday is younger than it looks. For most of this country's history nobody went to the sea for pleasure; the coast was for fishing, trade and keeping an eye on the horizon. Then, in the 1920s, a king built a railway line to a quiet shore south-west of Bangkok, put up a hotel at the end of it, and named his own seaside palace Klai Kangwon: Far From Worries. That is the founding promise of every Thai beach trip since, and it is a promise children understand perfectly. Bangkok's great advantage is how close the sea remains. Within two to five hours of the city lie beaches for every kind of family — a resort with its own water park, islands with sand like flour, and one wild card at the end for families ready to go further. Here is where to take them.
Pattaya — 2 hours
Say it plainly: you can have a wonderful family holiday in Pattaya. The city began its modern life in the 1960s as a leave town for American servicemen, and it has spent the decades since acquiring a reputation that precedes it. But Pattaya today is also one of the most child-friendly destinations in the country, and it wears its two identities in different districts. Stay north, around Wong Amat and Na Kluea, and the town you meet is water parks, aquariums and family restaurants.
The emblem of the new Pattaya is the Grande Centre Point Space Pattaya, a space-themed hotel in North Pattaya with one of the city's largest water parks spread across 11,500 square metres — lazy river, wave pools, slide towers — plus a two-storey indoor "spaceship" playground with a games arcade, all a short walk from the Terminal 21 mall. Families who stay report barely needing to leave, which in Pattaya is rather the point. Beyond the hotel, the Cartoon Network water park and Ramayana Water Park sit just out of town, the beaches at Wong Amat and Jomtien are calm and swimmable, and family-friendly restaurants line the northern seafront. Pattaya's story is the strangest redemption arc on the Thai coast: the R&R town remaking itself, one wave pool at a time, for a very different kind of visitor.
Ko Samet — 3 hours plus a short boat
For a proper island without a long journey, Ko Samet is the nearest of the great ones: about three hours' drive to Ban Phe pier, then a short ferry or speedboat across. The island's sand is famous — fine, white and squeaky underfoot — and for families the beach to aim for is Ao Prao, on the quieter west coast. It is a sheltered crescent with calm, shallow water, a handful of comfortable resorts and none of the nightlife hum of the east-side beaches; small children can paddle safely while the sun sets directly in front of you, the west coast's private luxury. The east coast, around Hat Sai Kaew and Ao Phai, is livelier and cheaper, with fire shows and beachfront barbecues in the evenings. Samet sits in a rain shadow, so it stays drier than most of the coast even in the wet season, which makes it the most reliable quick escape on this list.
"Far From Worries: the founding promise of every Thai beach trip since."
Koh Chang — around 5 hours plus the car ferry
Thailand's second-largest island asks more of the journey — a longer drive east toward the Cambodian border, then a short car ferry — and repays it with scale. Koh Chang is a busy, well-fed island with a proper choice of everything: long west-coast beaches at White Sand Beach and Klong Prao with shallow, gentle water; a big spread of family resorts; and some of the best casual eating on the eastern seaboard, from beachfront seafood to the restaurant shacks of Klong Prao village. The island's interior is genuine rainforest, with waterfalls to walk to when a beach day needs varying, and the snorkelling is the best in this corner of the gulf — day boats run from Bang Bao pier to the small islands south of Chang, where children can float over coral gardens in calm, clear water. If your family's ideal is an island with plenty going on rather than perfect solitude, this is the one.
Hua Hin — 3 hours
Hua Hin is where the Thai beach holiday was invented, and it still feels like it. When the southern railway reached this fishing village in the 1920s, the court came with it: the Railway Hotel rose beside the sand (it survives today as the Centara Grand, all lawns and topiary), villas followed, and King Prajadhipok built Klai Kangwon, the palace named Far From Worries, at the beach's northern end. The model was consciously the European seaside town — promenade, grand hotel, arrival by train — translated into Thai. A century later that inheritance is exactly what makes it work for families: Hua Hin is a proper town with every amenity, night markets, water parks, cafés and hospitals, wrapped around a long, safe beach where ponies still walk children along the sand at low tide, as they have for generations. The railway station itself, with its royal waiting pavilion, is one of the prettiest in Thailand and worth the visit alone. Hua Hin is the gentlest introduction to the Thai seaside there is, which is fitting, since it was the first.
The Wild Card: Koh Kood — a full day's travel
And then there is Koh Kood (Ko Kut), for families ready to go all in. It sits at the far end of the eastern gulf, past Koh Chang — around five hours' drive to Laem Sok pier, then an hour or more by ferry — and the journey is precisely why it remains what the other islands used to be. Koh Kood is quiet in a way that has become rare: long, empty beaches of powder sand, water in improbable blues, a handful of low-key resorts and almost nothing else. Days organise themselves around swimming, kayaking the mangrove river, and the island's great set piece, Klong Chao waterfall, a broad jungle cascade with a deep, safe swimming pool at its base that children will not want to leave — for many visitors the best waterfall swim in Thailand. There are no crowds to manage and not much nightlife to avoid. It asks a full travel day at each end; it gives back the kind of island holiday people cross the world hoping to find, three provinces from Bangkok.
Planning the Trip
Match the journey to the ages involved. For the shortest drives and maximum infrastructure, Pattaya and Hua Hin; for a first island, Ko Samet and the calm shallows of Ao Prao; for variety and good eating, Koh Chang; for the full castaway dream, Koh Kood. Two seasonal notes: the west-facing island beaches are at their best from November to April, and seas can be rough in the May-to-October monsoon (Samet's rain shadow makes it the safest wet-season bet), while Hua Hin works nearly year-round. Book island ferries and hotels well ahead for Thai long weekends, when Bangkok empties toward the coast. And when you are standing on the sand watching the children run ahead, remember that you are taking part in a tradition almost exactly a century old, begun by a king who wanted to be far from worries. How Thailand fell in love with its own coastline is a story our audio guides tell in full — coming soon in the Siam Curated app.