Koh Samui is Thailand’s second-largest island and the Gulf coast’s answer to Phuket: a coconut-palm-covered island with an international airport, a resort strip on nearly every beach, and enough variety to fill a week without ever repeating a day. This guide groups the island’s real highlights, the beaches, the temples, the waterfalls and rock formations, the boat trips, and the nightlife, with current 2026 prices and hours, plus honest calls on what’s worth the ฿ and what isn’t.
Every price and hour below comes from official park pages, tour operators, and current 2026 visitor guides, listed in the Sources section. Prices are in Thai baht (THB) with US dollars in parentheses, converted at ฿33 = US$1 (July 2026). For where to sleep, see outthailand.com’s where to stay in Koh Samui guide, for a deeper look at every stretch of sand, see the Koh Samui beaches guide, and for planning when to come, the best time to visit Koh Samui guide covers the seasons in full. If you’re still working out how to reach the island, see getting to Koh Samui.
How many days do you need in Koh Samui?
Four to five days is the range that lets you see Koh Samui properly without a packed schedule: a day split between Chaweng and Lamai beaches, a temple morning at Big Buddha and Wat Plai Laem, a half-day at Na Muang Waterfalls or the Secret Buddha Garden, and a full day for the Ang Thong Marine Park boat trip. Three days works if you drop Ang Thong or a Koh Phangan side trip. A week or more adds room for a Koh Tao day trip, a Fisherman’s Village Friday night, and slower beach time. Because most of the sights sit on the island’s north and east coasts within a 20-30 minute drive of each other, a rental scooter or car makes the most of a short stay.
Top sights at a glance
| Sight | What it is | Rough cost | Area |
|---|---|---|---|
| Chaweng Beach | Longest beach (~6-7km), nightlife and watersports hub | Free to visit | East coast |
| Lamai Beach | Second-biggest beach, calmer, more local | Free to visit | Southeast coast |
| Bophut / Fisherman’s Village | Old fishing village, Friday Walking Street market (5-11pm) | Free entry | North coast |
| Big Buddha (Wat Phra Yai) | 12m gold Buddha statue, causeway islet | Free (donation) | Northeast tip |
| Wat Plai Laem | Colorful temple, 18-armed Guanyin statue | Free (donation) | Northeast tip |
| Na Muang Waterfalls | Two-tier jungle waterfall, swimmable pools | Free entry, ฿20-60 parking | Central hills |
| Ang Thong Marine Park | 42-island marine park, boat day trip | ฿1,200-2,800 (~$36-85) + ฿300 park fee | Boat from Bophut/Nathon |
| Hin Ta & Hin Yai | Grandfather/grandmother rock formations | Free | Near Lamai |
| Secret Buddha Garden | Hillside sculpture garden | Central hills | |
| Nightlife (Chaweng) | Beach bars, fire shows, clubs | Drinks from ฿100-150 | Chaweng |
| Koh Phangan day trip | Ferry across, beaches and markets | ฿300-400 (~$9-12) one-way | Ferry from Bophut/Maenam |
| Koh Tao day trip | Diving/snorkeling island, longer crossing | ฿550-700 (~$17-21) one-way | Ferry from Nathon |
| Thai massage | Street-side traditional massage | ฿250-400/hr (~$8-12) | Island-wide |
Ranges compiled from official and operator pages; see Sources. Prices at ฿33 = US$1 (July 2026).
Which beach should you pick: Chaweng, Lamai, or Bophut?
Chaweng is the busiest and most convenient if you want nightlife, watersports, and a dense strip of restaurants and beach clubs within walking distance. It runs roughly 6-7km of white sand along the east coast and functions as the island’s main tourist hub, with hotels stacked from budget to five-star. Lamai, the second-largest beach on the southeast coast, is the calmer alternative: wide sand, clearer water for swimming, and a more local, less built-up feel, with reggae bars and quieter evenings rather than Chaweng’s clubs. Bophut, on the north coast, is quieter still and centers on Fisherman’s Village, a converted row of old wooden shophouses turned into boutique cafes, restaurants, and bars, best known for its Friday-night market. Most itineraries base themselves in one and day-trip to the others, since they’re a 20-30 minute drive apart. For a full breakdown of every beach on the island, including quieter options like Choeng Mon and Maenam, see outthailand.com’s Koh Samui beaches guide.
What happens at Fisherman’s Village on Friday nights?
Bophut’s Fisherman’s Village Walking Street market takes over Beach Road every Friday from 5pm to 11pm, and it’s free to enter. Stalls sell Thai street food, grilled seafood, cocktails, and better-than-average crafts (batik, teak bowls, soap, beachwear), and there’s usually a live band or street performer somewhere along the strip. Go early, around 5-6pm, for elbow room and a clear sunset view over the water toward Koh Phangan; by 7-9pm it’s shoulder-to-shoulder and full party mode. Outside of Friday nights, Fisherman’s Village is still worth a stroll any evening for its restaurants and restored wooden shophouse architecture, just without the market stalls and crowds.
How much does it cost to see the Big Buddha and Wat Plai Laem?
Nothing, beyond a voluntary donation. Big Buddha (Wat Phra Yai), the island’s most recognizable landmark, is a 12-metre gold-leaf Buddha statue on a small causeway-linked islet off the northeast coast, free to enter and open roughly 7am to 6:30pm daily. Climb the steps to the statue’s base for coastal views, and dress modestly (shoulders and knees covered) as at any Thai temple. A short drive away, Wat Plai Laem is the more photogenic of the two for many visitors: a colorful temple complex built around an 18-armed statue of the Chinese goddess Guanyin sitting over a lake, blending Thai and Chinese architectural styles. It’s also free (donation welcomed), open roughly 6am to 6pm. The two temples sit close enough together that almost everyone visits both in the same trip, usually paired with lunch or a coffee stop nearby.
Are Na Muang Waterfalls worth the trip?
Yes, particularly if you already have a scooter or car, since Na Muang Waterfalls charge no entrance fee as of 2026 (only parking near Na Muang 2 costs ฿20 for scooters and ฿60 for cars). The falls sit in the island’s central hills and come as two linked stops. Na Muang 1 is the easy option: a short, flat walk from the car park to a swimmable pool at the base of a modest cascade. Na Muang 2 requires a steeper 20-30 minute uphill walk through jungle, but rewards you with a taller, less crowded waterfall and a viewpoint. Both are open 9am to 6pm, and water flow is strongest in the wetter months (roughly September through December); by the dry season the falls can thin out considerably, so temper expectations if you’re visiting January through August.
Is the Ang Thong Marine Park day trip worth it?
Yes, if you have a full day to spare and calm seas, since it’s the standout nature trip from Koh Samui. Ang Thong National Marine Park is a cluster of roughly 42 limestone islands northwest of Samui, made famous partly by the film The Beach. Standard group boat tours from Koh Samui run ฿1,200-2,000 (about US$36-61) per person, typically bundling hotel pickup, a guided hike up to a viewpoint on Koh Wua Talap or Koh Mae Ko, snorkeling gear, sea kayaking, and lunch, over a roughly 8-hour day once transit time is included. Faster speedboat tours cost more, around ฿1,800-2,800 (about $55-85), cutting total time to 6-7 hours. On top of the tour price, the park itself charges a ฿300 (about $9) national park entrance fee for foreign adults; some tours already fold this into the ticket price and some charge it separately on arrival, so confirm which applies when you book. Rough seas (especially in the November monsoon window) can cancel sailings, so build in a buffer day if this trip matters to your itinerary.
What are Hin Ta and Hin Yai (the grandfather and grandmother rocks)?
Hin Ta and Hin Yai are naturally weathered granite rock formations just off the coast road near Lamai Beach, nicknamed the “grandfather and grandmother rocks” for their resemblance to male and female anatomy. Local legend ties them to an elderly couple who drowned at sea while sailing to arrange their son’s marriage, and were said to have turned to stone as proof of their intentions. They’re free to view and take only five to ten minutes to see properly, so most visitors combine the stop with a Lamai beach day rather than making a special trip. It’s a curiosity rather than a headline sight, but it’s on the way for anyone exploring the southeast coast.
What is the Secret Buddha Garden?
The Secret Buddha Garden (also called Magic Garden or Tarnim Magic Garden) is a hillside sculpture garden in the island’s central hills, roughly 20-30 minutes’ drive from Chaweng. It was built starting in 1976 by a local durian farmer, Nim Thongsuk, who spent 14 years placing dozens of statues of Buddhist and Hindu figures, animals, and people among the jungle boulders and waterfalls of his farm. Entrance runs roughly ฿80 (about $2.40) for foreign adults, and it’s open daily, 9am to 6pm. The road up is steep and rough in places, so it’s best reached by 4x4, a booked tour, or a sturdy scooter rather than an underpowered rental, and it pairs naturally with a Na Muang Waterfalls stop since both sit in the same inland hill area.
What’s Koh Samui’s nightlife like?
Most of the island’s nightlife concentrates on Chaweng, where bars, restaurants, and clubs line a roughly 2km strip behind the beach. Evenings typically start with sunset drinks at a beach club around 6-7pm, move into fire shows from around 8pm to midnight (long-running beach bar ARKbar is known for running the biggest nightly fire show on Chaweng), then shift into late-night bars and clubs from around 10pm, with clubs like Green Mango running until the early hours on weekends. Expect beer and basic cocktails from roughly ฿100-150, with cover charges and drink minimums at some clubs on busier nights. Lamai has a smaller, calmer bar scene by comparison, better suited to a laid-back evening than a big night out.
What does a spa day or massage cost in Koh Samui?
A street-side one-hour traditional Thai massage runs roughly ฿250-400 (about US$8-12) island-wide, with ฿300 being the most commonly quoted standard price at beachside massage shops. Resort and hotel spas charge considerably more for the same hour, typically ฿600-800 and up, for a quieter setting, air conditioning, and higher-end products. If budget matters, street shops in Chaweng, Lamai, and Bophut deliver a comparable massage for a fraction of the resort-spa price; if you want a half-day wellness package with facials or scrubs added on, that’s where the resort spas earn their premium.
Can you day-trip to Koh Phangan or Koh Tao?
Koh Phangan is the easy one: ferries from Bophut or Maenam pier take about 30 minutes and cost roughly ฿300-400 (about $9-12) one-way, with dozens of sailings a day across several operators, making it simple to see Full Moon Party beaches, Thong Sala’s markets, or Koh Phangan’s waterfalls and be back on Samui by evening. For the fuller picture of what’s there, see outthailand.com’s things to do in Koh Phangan guide. Koh Tao is a longer haul, roughly 1.5 to 2.5 hours each way from Nathon pier, with fares roughly ฿550-700 (about $17-21) one-way, so it works best as a full-day trip built around diving or snorkeling (Koh Tao is Thailand’s diving hub) rather than a quick add-on. Both islands are worth knowing about if you’re weighing where to split time across the Gulf coast; see outthailand.com’s best islands in Thailand guide for how Samui, Phangan, and Tao compare to the rest of the country’s islands.
Honest downsides
- Pricier than mainland Thailand and than Koh Phangan. The international airport, resort density, and lack of budget backpacker infrastructure push up food, transport, and accommodation costs compared with Bangkok or Chiang Mai.
- Taxis are expensive and rarely metered. Koh Samui has a well-known fixed-fare taxi setup rather than meters; agree the price before you get in, and expect fares that feel steep for short distances. A rental scooter or car is usually cheaper if you’re comfortable driving on the island’s hillier roads.
- Chaweng is busy and touristy. It’s convenient and lively, but it can feel like a resort strip rather than “real” Thailand; Lamai, Bophut, or the island’s quieter west and south coasts are the antidote if that’s not your scene.
- October-December brings the rains. November is typically the wettest month, with rough seas that can delay or cancel ferries and boat trips like Ang Thong; showers tend to be short, heavy downpours rather than all-day rain, but flexible plans help. December usually dries out fast toward the end of the month.
- Ang Thong trips are weather-dependent. Rough seas, especially in the monsoon window, can cancel sailings with little notice, so don’t schedule it for your only full day if you can help it.
How should you plan your Koh Samui trip?
Base yourself on one beach and day-trip to the rest. For a ready-made plan that threads the temples, a waterfall, and the Ang Thong boat day together at a sane pace, follow outthailand.com’s Koh Samui 3-day itinerary, pick your base with the where to stay in Koh Samui guide, and check what’s on while you’re there on the Out Thailand events hub.
Sources
- Big Buddha Temple (Wat Phra Yai): Entrance Fee, Opening Hours: free entry, 7am-6:30pm hours
- Wat Plai Laem: Entrance Fee, Opening Hours: free entry, 6am-6pm hours
- Na Muang Waterfall 2: Travel Information 2026, BestPrice Travel: free entrance, ฿20/60 parking, 9am-6pm hours
- Ang Thong Marine Park Tour 2026, Inside Samui: tour pricing, national park fee, trip duration
- Grandfather and Grandmother Rocks (Hin Ta Hin Yai), Atlas Obscura: location, legend
- Koh Samui Secret Buddha Garden, ExcursionMania (updated July 2026): entrance fee, hours, history
- Fisherman’s Village Walking Street, Garrya Tongsai Bay: Friday market hours, free entry, location
- Lamai vs. Chaweng: Which Koh Samui Beach Is Right For You?: beach comparison
- Koh Samui Nightlife Guide, Ark Bar: Chaweng nightlife hours and venues
- Lomprayah Ferry: Complete 2026 Island Travel Guide, ThailandBoatTickets: Koh Samui-Koh Phangan ferry pricing, duration
- Koh Samui to Koh Tao 2026 Ultimate Ferry Guide, Inside Samui: ferry duration and pricing
- How Much Do Things Cost on Koh Samui? Price List: massage prices, general cost benchmarks
- Koh Samui Weather Guide: Best Seasons, Climate & Travel Tips, Phanganist: rainy season timing and conditions