Things to Do in Koh Samui
Thailand's glamour island — beaches, boats, and barefoot luxury
Koh Samui: More Than Just a Beach
Koh Samui is Thailand's second-largest island and easily its most polished. The infrastructure matches any international resort destination — good roads, international airports, and a dining scene ranging from ฿80 pad thai to Michelin-recommended seafood. But beneath the glossy exterior, Koh Samui still delivers genuine Thai character: fishing villages where boats go out at dawn, jungle-interior waterfalls, and a Buddhist spirit that pervades the island. Here's what to do with your time.
Best Time to Visit Koh Samui
Koh Samui sits on the Gulf of Thailand and follows a different weather pattern from Phuket and the Andaman coast. The best weather runs from January to August, with February to April being the driest and calmest months — ideal for diving, snorkelling, and boat trips to Ang Thong Marine Park.
The Gulf monsoon hits hardest in November, when heavy rain and rough seas can disrupt ferry services and beach days. December is transitional — often wet early in the month but clearing by Christmas. The upside of shoulder months (May, October) is significantly lower hotel prices and fewer crowds, with weather that's still mostly sunny.
A key advantage of Koh Samui's schedule: when Phuket and Krabi are in their monsoon (June–September), Koh Samui often has sunshine. This makes it the best Thai island for a summer beach holiday.
Sweet spot: February to April for the best weather. June to August for sunshine at low-season prices while the Andaman coast is in monsoon.
Best Beaches in Koh Samui
Chaweng Beach is the main event — a 7-kilometre sweep of white sand with every amenity imaginable. It's busy but earns its popularity. Chaweng Noi at the southern end is quieter and more upscale. Lamai Beach is the second-largest, more laid-back than Chaweng with a backpacker-to-mid-range vibe and excellent swimming.
For families, the north coast is the sweet spot. Choeng Mon has calm, shallow water and a village atmosphere. Maenam is quiet and local-feeling with affordable beachfront bungalows. Bophut's Fisherman's Village combines a decent beach with the island's best dining strip.
The hidden gems: Silver Beach (Crystal Bay) between Chaweng and Lamai is a tiny, photogenic cove — arrive early to claim a spot. Lipa Noi on the west coast has Koh Samui's best sunsets and almost no tourists. Taling Ngam in the southwest is remote, peaceful, and home to some of the island's most exclusive resorts.
Beaches & Water Activities
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Ko Pha Ngan
White-sand beaches & coconut trees on island known for its monthly Full Moon Party celebrations.
Ko Tao
Island offering scenic white sand beaches, coral reefs & scuba diving, with numerous resorts & bars.
Ko Samui
Sizable island with picturesque beaches, a rainforest, upscale hotels & the Big Buddha Temple.
Lamai Beach
White-sand beach lined with bars & restaurants, with rentable lounge chairs & palm trees.
Bo Phut Beach
Modest beach featuring Fisherman's Village, which offers shops, restaurants, diving & more.
Chaweng Beach
Long, spacious beach with an upbeat vibe featuring nearby resorts, restaurants & shopping.
Day Trips & Island Hopping from Koh Samui
Ang Thong Marine Park is Koh Samui's top day trip — a stunning archipelago of 42 islands with emerald lagoons, sea caves, and viewpoints. Full-day tours (฿1,400–1,800) depart from Na Thon pier and include snorkelling, kayaking, and a hike to the famous Blue Lagoon viewpoint. The park is closed in November and December.
Koh Phangan is just 30 minutes by speedboat — most visitors know it for the Full Moon Party at Haad Rin, but the island's quieter north and west coasts (Bottle Beach, Thong Nai Pan, Haad Salad) are beautiful day-trip destinations. Koh Tao is 1.5 hours further and offers some of the best (and cheapest) diving in Southeast Asia.
For something different, book a longtail boat to Koh Tan and Koh Mudsum — two tiny islands off the south coast with excellent snorkelling, no cars, and almost no other tourists. Half-day trips run ฿800–1,200 from the Taling Ngam pier.
Activities & Tours
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Big Blue Diving School Koh Tao
A highly regarded diving school on Sairee Beach offering PADI certifications and guided dives for all experience levels.
Hawk Adventure Zipline Park Koh Samui
A jungle zipline park on Koh Samui offering guided canopy adventures through lush tropical terrain, open daily.
Mu Ko Ang Thong National Marine Park
National park over an island archipelago featuring forested peaks, scenic views & abundant wildlife.
Hin Ta Hin Yai
Storied natural rock formations known for bearing a resemblance to male & female genitalia.
Best Restaurants in Koh Samui
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THE COCOON - SAMUI VIEWPOINT
Hilltop restaurant and bar with panoramic jungle and ocean views, open daily 9am–11pm.
THAI KITCHEN RESTAURANT
Authentic Thai kitchen on Bo Put's Beach Road, open daily from 11am until 2am for late-night dining.
4 SPICES | Samui viewpoint restaurant כשר
Kosher hilltop restaurant in Koh Samui offering panoramic views and evening dining in Bang Rak.
Kapi Sator Central Samui
Michelin-recommended Southern Thai restaurant inside Central Festival mall, open daily until 1am.
Nightlife
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Coco Tam’s
Beachfront bar and restaurant in Bo Put famous for nightly fire shows, bean bag seating on the sand, and surprisingly good pizza.
ARKbar Beach Club & Resort
Beachfront bar and resort on Chaweng Beach, combining nightlife energy with overnight accommodation options.
Elephant Beach Club
Beachfront bar and club in Bo Put offering a laid-back alternative to Koh Samui's busier nightlife scenes.
Teddy Weed Beach
Beachfront cannabis bar and lounge in Lamai with cocktails, Thai food, fire shows, and shisha.
Wellness & Spas
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Dusita Spa 2
A highly regarded spa in Bo Put, Koh Samui, specialising in traditional Thai massage and hair treatments.
Urban Thai
A highly regarded wellness and spa facility in Bo Put, Koh Samui, offering traditional Thai healing treatments.
Thai Garden
A serene massage spa tucked away in Bo Put, praised for skilled therapists and a tranquil oasis atmosphere.
Nakee Thai Massage ( Bo Phut - Koh Samui )
Authentic Thai massage studio in Bo Phut village, praised for skilled therapists and a calm, professional atmosphere.
Getting To & Around Koh Samui
Getting Around the Island
Scooter rental (฿200–300/day) is by far the best way to explore — the ring road circles the island in under an hour. Grab works in the main tourist areas. Songthaews run fixed routes around the ring road for ฿50–100 per person.
Island Hopping
Koh Phangan (Full Moon Party, quieter beaches) is 30 min by ferry (฿200). Koh Tao (diving, snorkelling) is 1.5 hours (฿350). Ang Thong Marine Park day trips depart from Na Thon pier (฿1,400–1,800 including snorkelling and kayaking).
Koh Samui Costs at a Glance
| Budget | Mid-Range | Luxury | |
|---|---|---|---|
| Accommodation/night | ฿800–1,200 | ฿2,000–5,000 | ฿8,000–25,000+ |
| Meal | ฿80–200 | ฿200–600 | ฿800–2,500 |
| Scooter rental/day | ฿200–300 | ฿200–300 | Private driver ฿1,500 |
| Ang Thong day trip | ฿1,400–1,800 | ฿1,400–1,800 | Private boat ฿15,000+ |
| Thai massage (1hr) | ฿300–500 | ฿500–800 | ฿1,500–3,000 |
| Daily total | ฿1,500–2,500 | ฿3,500–7,000 | ฿12,000–30,000+ |
Prices in Thai baht. Bangkok Airways flights to Koh Samui are ฿1,500–5,000 one way; the ferry via Surat Thani is ฿200–350.
Hidden Gems in Koh Samui
Ran Khang Non
Unassuming Bo Put Thai restaurant serving authentic, richly flavoured dishes at budget prices on Koh Samui.
Sassy
Chic Italian restaurant and steakhouse on the second floor of Haven Samui mall, open daily for lunch through late evening.
Chom Chada Cocktail Bar & Bistro
Cocktail bar and bistro on Chaweng Beach Road serving Thai and European dishes from breakfast through late night.
Chaweng Noi Beach
A quieter alternative to busy Chaweng Beach, offering clear water, soft sand, and a relaxed atmosphere.
W Beach
A tranquil palm-fringed beach on Koh Samui split between a private hotel section and a public stretch with water sports.
Bang Po Beach
Sandy stretch popular for snorkeling, yoga & sunsets, with bars, seafood eateries & simple lodgings.
LAVALED SAMUI (Chaweng Walking Arcade)
A high-energy "floor is lava" obstacle game in Chaweng, perfect for families and groups seeking active fun.
Boutique Yachting
Boutique yacht charter offering island-hopping, sunset cruises, and snorkelling from Koh Samui's Bophut coast.
Turtle Divers - Koh Tao
A highly regarded PADI dive centre in Mae Haad offering certification courses and fun dives for all skill levels.
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Frequently Asked Questions
Common questions about things to do in koh samui.
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