Thailand
About
Koh Samui is Thailand's second-largest island, located in the Gulf of Thailand in Surat Thani Province. With an area of roughly 230 km², it is known for its well-developed tourism infrastructure, diverse beaches, and a range of accommodation from budget guesthouses to some of Thailand's most exclusive private villa resorts. The island receives approximately four million visitors annually and has direct international flight connections through Koh Samui Airport (USM), making it one of the most accessible Thai island destinations.
Chaweng Beach, on the island's east coast, is the most developed and popular stretch of sand, lined with hotels, restaurants, bars, and shopping areas. It is lively during peak season but can feel crowded. Lamai Beach, the second-largest, is a few kilometres south and has a similar profile but with a slightly quieter character. On the north coast, Bophut is home to the Fisherman's Village, a preserved street of old Chinese shophouses converted into boutique restaurants and guesthouses, which hosts a popular walking market on Friday evenings.
The island's natural highlights include the Hin Ta and Hin Yai rocks near Lamai — unusual rock formations with a local legend attached — and Na Muang Waterfall in the island's jungle interior, accessible by short hike. The Big Buddha temple at Bang Rak, featuring a 12-metre golden statue on a small island connected by a causeway, is the most visited religious site.
Koh Samui is also the primary departure point for excursions to the surrounding Gulf islands. Ang Thong Marine National Park, an archipelago of 42 limestone islands about 31 km northwest, is known for its emerald lagoons and dramatic scenery and is visited by speedboat day tours. Koh Pha Ngan, famous for its Full Moon Party on Hat Rin Beach, is a 30-minute ferry ride north. Koh Tao, a top scuba diving and snorkelling destination, is around two hours by catamaran.
The island has two airports: Koh Samui Airport (USM), operated by Bangkok Airways and handling domestic and some international flights, and the original location accessible from the mainland by ferry and bus from Surat Thani. The dry season runs from December to April, with the northeast monsoon bringing the heaviest rain to Koh Samui from October to December — the inverse of the Andaman coast pattern. June to August is generally drier and good for travel.
When to Go
Koh Samui follows the Gulf of Thailand's own weather pattern, drier than the Andaman coast when the southwest monsoon hits. The dry season from December to April is the best time — sunny, calm seas and ideal beach weather.
Attractions
Thailand's second-largest island mixes wide resort beaches, jungle waterfalls, hidden coves and easy island-hopping to the full-moon party islands. Four to seven days is the sweet spot. For luxury stays, see our Koh Samui luxury resorts guide.
The island's two headline beaches. Chaweng is the longest and liveliest — white sand, beach clubs, nightlife and water sports. Lamai, to the south, is a touch quieter and cheaper with a more local feel. Both have calm, swimmable water in the dry season.
The 12-metre golden Buddha on a small connected island, visible from the air as you land. Climb the steps for the temple, the views and the fortune-stick monks. One of Samui's most recognisable landmarks; dress modestly.
Free.
A pristine archipelago of 42 limestone islands — emerald lagoons, hidden caves, sea kayaking and the famous viewpoints. A protected national park reached by speedboat day tour. Our Ang Thong guide has the detail.
Day tours from ~1,500–2,500 THB ($43–72), including park fee, kayaking and lunch.
Two-tiered jungle falls in the mountainous interior, with natural pools to swim in and elephant sanctuaries nearby (choose no-riding ethical operations). A scenic escape from the beaches into Samui's green heart.
Park entry free; some trail areas ~50 THB.
A charming strip of restored Chinese shophouses, boutique hotels and restaurants on a quiet beach — the laid-back alternative to Chaweng. The Friday walking street market is one of the best on the island.
Samui is the hub for the Gulf islands — the full-moon parties and hippie beaches of Koh Phangan, and the diving and snorkelling of Koh Tao, both a ferry or speedboat away.
Transport
Samui is a 25 km island with a ring road around the coast. Songthaews, taxis, scooters and rental cars all work; the interior hills make a scooter the most flexible option if you're confident.
Koh Samui Airport (USM) is one of the few island airports — flights from Bangkok, Phuket, Chiang Mai and Singapore. Or ferry from Krabi and the mainland.
Accommodation
Pick your beach and you've picked your trip — each has a distinct personality.
The longest beach and the action centre — resorts, beach clubs, bars and shopping. Lively day and night.
Restored shophouse boutique hotels and restaurants on a quiet beach — the atmospheric, grown-up choice.
A long sandy beach with a more local, relaxed feel — good mid-range and budget options.
Quieter coves and five-star resorts near the Big Buddha — calm water, privacy and family-friendly sand.
Food & Drink
Samui runs the full range — cheap roadside pad thai and som tam, beachfront seafood barbecues and international fine dining. Eat where the locals eat for the best food and prices.
Beach seafood BBQ — pick your fish, prawns and crab from the ice and have it grilled on the beach at the Fisherman's Village and Chaweng stalls. Massaman curry — the rich southern Thai speciality, with roots in the region's spice trade.
Also unmissable: pad thai, green curry, fresh coconut ice cream and the southern Thai khao mok gai biryani from the Muslim fishing villages.
Plan Your Trip
Most passport holders get 60 days visa-free in Thailand. The currency is the baht (THB). English is widely spoken in this mature tourist destination — Koh Samui is among the easiest islands to visit in Thailand.
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Where to Stay
Vana Belle is a Marriott Luxury Collection resort on the intimate headland of Chaweng Noi, offering beachfront villas and suites with private plunge pools. The resort's 80 pool suites and villas combine Thai architectural craftsmanship with extensive spa and dining facilities. It consistently earns one of Koh Samui's highest guest ratings at 9.4.
Banyan Tree Samui is an 88-villa all-pool resort on a private hill cove on the south-eastern coast, with every villa featuring a private pool and sea views. The property is set on a pristine private beach accessed by a funicular, and offers a signature Banyan Tree spa, multiple dining venues, and a renowned butler service programme.
Garrya Tongsai Bay is a secluded resort on the north coast of Koh Samui with a 200-metre private beach and two pools. The 83 suites and villas are spread across the hillside above the bay, and the property is known for its wellness-oriented spa, strong sustainability initiatives, and unhurried service ethos.
Santiburi Koh Samui occupies a quiet stretch of Maenam Beach on the north coast, offering a secluded and understated luxury experience away from the busier east-coast resorts. The property has large grounds, multiple dining options, and a spa overlooking the beachfront. Its 9.3 rating reflects consistently strong service.
Conrad Koh Samui is a Hilton luxury property on the quieter west coast, featuring 81 private pool villas arranged on a hillside with panoramic Gulf of Thailand sunset views. The resort's elevated position, all-villa format, and three pools make it one of the island's most private luxury experiences.
Hyatt Regency Koh Samui is a contemporary five-star resort near Chaweng and Choeng Mon beaches with five outdoor pools, a private beach, full-service spa, and Kids Club. Its newer infrastructure and brand consistency make it a strong choice for families and couples seeking reliable luxury service on the north-east coast.
SALA Samui Chaweng Beach Resort is a boutique property on Chaweng Beach with an all-pool-villa design and a relaxed contemporary atmosphere. The resort's intimate scale, direct beach access, and competitive pricing for the villa format make it a well-regarded option for couples and small groups seeking a private pool without a five-star price tag.
Bo Phut Resort & Spa is a well-regarded boutique property on Bophut Beach, a few steps from the Fisherman's Village. The resort has a pool, spa, restaurant, and tastefully designed rooms in a garden setting. Its quieter north-coast location suits travellers who prefer the ambience of Bophut to the busier Chaweng strip.
OZO Chaweng Samui is a modern three-star hotel in Central Chaweng, offering clean and well-designed rooms at a budget-friendly price point. The hotel has a pool and cafe, and its central location puts guests within easy reach of the beach, restaurants, and nightlife. It is a reliable option for cost-conscious travellers who want to stay in the heart of the action.
ibis Samui Bophut is a reliable budget hotel on Bophut Beach offering clean, air-conditioned rooms, a pool, and easy access to the Fisherman's Village. With a 8.3 rating and over 5,000 reviews, it provides consistent quality for budget travellers who want a north-coast base close to local restaurants and pier connections.
A budget-friendly beachfront option on Chaweng offering straightforward rooms with air conditioning, a pool, and direct beach access at a price point well below the surrounding four- and five-star properties. Suitable for travellers prioritising beach access at the lowest possible cost.
A Chaweng beachfront budget resort well known for its beachside bar, pool parties, and lively evening atmosphere. The rooms are basic but the direct beach location and party atmosphere attract younger travellers and backpackers. Standard rooms are affordable by Chaweng standards.
The most affordable accommodation option in the Chaweng area, offering basic rooms with air conditioning and Wi-Fi a short walk from the beach. Suitable for budget backpackers who plan to spend most of their time on the beach and use the room primarily for sleeping.
Experiences
Ang Thong Marine National Park is an archipelago of 42 islands northwest of Koh Samui, featuring emerald-green sea caves, limestone pinnacles, and the famous inland saltwater lake on Ko Mae Koh. Speedboat day tours include kayaking through caves, a viewpoint hike, snorkelling, and a beach stop.
A full-day speedboat trip from Koh Samui to Koh Tao, one of Thailand's top diving and snorkelling destinations, and the twin-peaked Koh Nang Yuan island. The tour includes snorkelling at multiple reef sites, a beach stop at Koh Nang Yuan's sandbar, and lunch.
A guided boat tour of Ang Thong Marine National Park combining kayaking through sea caves and mangrove channels with a visit to the saltwater lagoon and panoramic viewpoint. The tour includes snorkelling and a beach lunch on one of the park's secluded islands.
A private full-day longtail boat tour from Koh Samui to Koh Tao and the sandbar of Koh Nang Yuan, with snorkelling equipment included. The private format allows flexible scheduling and personalised stops at the most active reef sites around the two islands.
A shared full-day 4x4 tour of Koh Samui's interior and coastal highlights, including the Big Buddha temple, Na Muang Waterfall, Hin Ta and Hin Yai rock formations, coconut plantations, and local villages. The off-road format reaches areas inaccessible to regular vehicles.
A shared boat tour to Ang Thong Marine National Park departing from Koh Samui, visiting the park's main islands by larger vessel. The tour is the most affordable way to experience the park and includes kayaking, snorkelling, and a visit to the saltwater lagoon.
A guided visit to an ethical elephant sanctuary on Koh Samui where rescued elephants live without performing or carrying riders. Visitors observe elephants at close range in their natural habitat, feed them, and learn about the sanctuary's rescue and rehabilitation work. A light meal is included.
A private half-day longtail boat excursion to Koh Mat Sum (also known as Pig Island or Koh Tan), a small island off the south coast of Koh Samui. The tour includes snorkelling at coral reefs, beach time, and the opportunity to snorkel alongside the island's resident pigs.
A full-day speedboat tour from Koh Samui searching for rare Indo-Pacific pink dolphins around the islands of Koh Tan and Koh Mudsum, combined with snorkelling at coral gardens. Pink dolphins are regularly sighted in the shallow waters south of Koh Samui.
An introductory group Muay Thai boxing class for beginners in Koh Samui, covering basic stance, striking technique, and pad work with experienced Thai trainers. Sessions run regularly at local gyms and provide a genuine insight into Thailand's national sport.
A one-on-one Muay Thai training session with an experienced instructor in Koh Samui, offering a more intensive and personalised boxing introduction than group classes. Suitable for complete beginners and those with some martial arts background.
The Big Buddha temple at Bang Rak features a 12-metre golden seated Buddha statue on a small island connected by a causeway. The site is one of Koh Samui's most recognisable landmarks and is free to enter, with stalls selling offerings and local snacks at the base of the statue.
Information
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