Koh Samui is the great beach island of the Gulf of Thailand: coconut palms leaning over white sand, warm calm waters, resorts for every budget and a mature tourist infrastructure that makes it very easy to enjoy. Unlike the Andaman islands, Samui has its own airport, connecting it directly with Bangkok, and a personality of its own: less wild than its neighbours, more comfortable and varied, with a range that goes from lively Chaweng to quiet corners, from five-star luxury to a backpacker vibe.
The island combines the classic beach plan with a handful of sights that give it character: the imposing golden Big Buddha welcoming you from its islet, the charming fishing village of Bophut with its wooden houses and market, the waterfalls of the jungle interior, the amusing Hin Ta Hin Yai rocks ('grandfather and grandmother') and, above all, the jewel of the area: Ang Thong National Marine Park, an archipelago of more than 40 limestone islands rising from the sea in an unforgettable postcard scene, the setting that inspired the novel 'The Beach'.
This guide helps you make the most of Koh Samui in a practical way: which beach to pick depending on what you're after, what to see beyond the sand, how to get there (by direct flight or the cheaper bus-and-ferry combo), when to go — its climate runs the opposite way to Phuket's! — and how to hop easily to neighbouring Koh Phangan and Koh Tao. Samui is the comfortable, sunny gateway to the island world of the Gulf of Thailand.
Koh Samui was inhabited for centuries by fishermen and, above all, by coconut growers: until well into the 20th century, the island lived cut off from the mainland, with hardly any roads, and its economy revolved around the coconut palms, whose fruit was shipped by boat to Bangkok (even today the coconut is part of its landscape and identity). The first settlers are believed to have arrived more than fifteen hundred years ago, with influence from Chinese traders from Hainan island, whose mark can be seen in some temples and in Hainan village. For a long time, getting around Samui was only possible on foot or by boat along the coast; the ring road that circles it today wasn't completed until the 1970s. Tourism arrived gradually, first with backpackers looking for unspoilt beaches in the 70s and 80s, and then, with the opening of the Bangkok Airways airport in 1989, rapid development that made it the best-equipped island in the Gulf. Today Koh Samui combines that heritage of coconut groves and fishermen with international resorts, without entirely losing its tropical rhythm. The full history of the island and the Gulf is on our history page.
Read the full history ↓The islands of the gulf: Koh Samui with its coconut palms, Koh Tao, once a penal colony and now a diving mecca, and Koh Phangan, home of the Full Moon Party.
Read the history of South / Gulf of Thailand (eastern islands) →If you book from here we earn a commission and you pay no more. Prices and availability come from Civitatis.
No exact prices: a scale from $ (budget) to $$$$$ (luxury), with 2-3 options per category.
Origins, formation and what the sources say.
Before the resorts and the direct flights, Koh Samui was a world apart: an island of coconut palms and fishermen lost in the Gulf of Thailand, so far from the mainland and so wrapped up in itself that for centuries it lived almost ignored by the rest of the country. Its story is that of an isolated tropical corner whose economy and landscape revolved, for generations, around one single thing: the coconut.
The island is believed to have been inhabited for more than fifteen hundred years, and its early settlers and visitors are thought to have included Malay fishermen and traders as well as people from southern China. Especially important was the influence of immigrants from Hainan Island, in southern China, who settled on Samui and left their mark on the culture, on the wooden architecture of some houses and temples, and even on place names such as Hainan Village. That blend of Thai, Chinese and Malay roots shaped the island's character.
For centuries, life on Samui was quiet and self-sufficient. Coconut palms covered the island, and coconut production, shipped by boat to Bangkok, was its main livelihood, along with fishing. Even today, the coconut groves are part of the landscape and of Samui's identity, a living reminder of the time when the island was, above all, one big tropical plantation surrounded by sea.
What defines Koh Samui's history more than anything, until well into the 20th century, is its near-total isolation. Unlike other islands or coastal areas, Samui stayed on the sidelines of the rest of Thailand's development for generations, with hardly any connection to the mainland and no modern infrastructure. It was, quite literally, a world apart in the middle of the Gulf.
Until the 1970s, the island had no road running around it. To get from one part to another, locals had to walk for hours along trails that crossed the mountains and coconut groves of the interior, or else follow the coast by boat. There was no reliable electricity, no large schools or hospitals, and none of the flow of goods and people that linked other regions to Bangkok. Life followed the slow rhythm of fishing, coconuts and the seasons.
As in so many paradises, that isolation had a preserving effect: it kept Samui untouched and authentic, with pristine beaches, endless coconut groves and a close-knit local community deeply tied to the land and the sea. It was precisely this quiet, beautiful island without roads that the first adventurous travellers, arriving by boat from the mainland in search of unknown paradise beaches, would begin to discover, almost by chance.
The first chapter of tourism on Koh Samui was written by backpackers. In the 1970s, as Southeast Asia opened up as a destination for budget travellers making their way across Asia, a handful of adventurers reached the island on the boats that carried coconuts to the mainland. What they found was paradise: white-sand beaches and coconut palms, warm water, ridiculously low prices and total peace and quiet, all with barely any tourists.
Getting to Samui back then was a small odyssey, and that was part of the charm: you had to reach Surat Thani, on the mainland, and catch a slow cargo or fishing boat that took several hours to cross the Gulf to the island. Once there, the first visitors stayed in simple bamboo and wooden huts that local families began building on the beaches, especially at Chaweng and Lamai, giving rise to the first bungalows.
Word spread through the travelling community, and Samui began to gain a reputation as one of Thailand's 'paradise islands', alongside others being discovered at the time. It was still small-scale, low-impact backpacker tourism that respected the island's pace. But those bamboo huts on the beach were the seed of what, within a few decades, would completely transform Koh Samui and turn it into one of the most developed and famous islands in the country.
Two infrastructure projects changed Koh Samui's destiny forever and marked its shift from backpacker island to resort island. The first was the construction, in the 1970s, of the Ring Road, which finally circled the island and connected its beaches and villages, ending centuries of internal isolation and making it easier to move people and goods. With roads, the island began to grow.
The second, and more decisive, was the opening of Samui Airport in 1989. Built by the private airline Bangkok Airways, which for a long time held a monopoly on flights to the island, this open-air garden airport with its tropical look connected Samui directly by air to Bangkok and other cities, cutting the journey from a long boat crossing to little more than an hour's flight. The impact was immediate and huge.
With the airport, Koh Samui stopped being a destination only for backpackers with time on their hands and opened up to international tourism at every level, including luxury. Over the following decades, hotels and resorts (some of them very upscale), restaurants, services and the population all multiplied. The island went through a development boom that made it the best-equipped in the Gulf and one of Thailand's great beach destinations, with everything that brings: prosperity and fame, but also building and environmental pressure on a once-untouched paradise.
Today's Koh Samui is one of Thailand's most developed and popular tourist islands, a destination that combines palm-fringed beaches, resorts at every level (including five-star luxury and honeymoon villas), lively nightlife in Chaweng, good food and complete infrastructure that makes it very easy to enjoy. Every year it welcomes huge numbers of visitors from all over the world and, together with its neighbours Phangan and Tao, it is the heart of tourism in the Gulf.
That rapid development does come with tensions, though. Urban growth, pressure on water and the environment, waste management and overcrowding in some areas are real challenges for an island that went from bamboo huts to large hotel complexes in just a few decades. As in Phuket, tourist success sits alongside the need to preserve what made Samui appealing in the first place.
Even so, the island keeps corners and roots from its past. Coconut groves still cover much of the interior and the hillsides; the charming fishing village of Bophut, with its Sino-Thai wooden houses, recalls the legacy of the Hainanese traders; and the temples, the Big Buddha and local traditions keep the island's culture alive. Beneath the layer of resorts and international tourism, the old Koh Samui still beats: a tropical island of fishermen and coconut palms that, almost by surprise, ended up becoming one of Thailand's great beach paradises.
