Updated June 2026. Planning the best things to do on Koh Samui for your 2026 trip? This is the full local line-up — the icons everyone photographs, the quieter gems most visitors miss, and the experiences that actually justify a day off the beach. We have grouped all 25 into Beaches & Nature, Culture & Temples, Adventure & Activities, Food & Nightlife, Wellness and Day Trips, with rough costs, timing and a local tip for each.
Koh Samui is Thailand’s second-largest island and the most complete of the Gulf islands: an international airport, a 51 km ring road, jungle-clad peaks in the middle and a beach for every mood around the edge. You can dive, kayak, temple-hop, eat brilliantly and have a spa day all in the same week. Below are the 25 best things to do on Koh Samui in 2026 — and where it helps, you can browse and book the experience straight from the KOHME app on Koh Samui.
Beaches & Nature
1. Chaweng Beach — The island’s headline beach: 6 km of powder-white sand, turquoise water and the busiest strip of bars, restaurants and shops on Samui. Mornings are calm and swimmable; nights turn lively. Cost: free. Local tip: walk to the quieter northern end near the lagoon to escape the jet-ski crowd.
2. Lamai Beach — Samui’s second beach, just south of Chaweng and a notch more relaxed. Soft sand, good swimming and a more laid-back nightlife scene. Cost: free. Local tip: the southern end has the calmest water and the famous Hin Ta & Hin Yai rocks within walking distance.
3. Maenam Beach — The pick for couples and families who want quiet. A long, shady, gently shelving beach on the north coast with views across to Koh Phangan and superb sunsets. Cost: free. Local tip: grab a fruit shake from a beach shack and stay for sunset — it is the best free thing to do on the island.
4. Na Muang Waterfalls 1 & 2 — The island’s prettiest falls, hidden in the central jungle. Na Muang 1 is an easy roadside walk to an 18 m cascade with a swimming pool; Na Muang 2 is taller (about 80 m) and needs a steeper 30-minute trek. Cost: free entry. Local tip: go after rain for full flow, and skip the overpriced “safari” touts at the entrance — the walk is easy on your own.
5. Hin Ta & Hin Yai (Grandfather & Grandmother Rocks) — Two famously suggestive rock formations on the Lamai coast, wrapped in a cheeky local legend. A quick, fun, free stop with a lovely sea outlook and a small market behind it. Cost: free. Time: 20–30 minutes. Local tip: pair it with Lamai Beach and the Hua Thanon fish market just down the road.
Culture & Temples
6. Big Buddha (Wat Phra Yai) — Samui’s most famous landmark: a 12 m golden Buddha on a tiny causeway islet in the northeast, visible from arriving planes. Climb the naga staircase for the views, ring the bells and browse the stalls below. Cost: free (donation appreciated). Local tip: come at sunset and dress respectfully — shoulders and knees covered.
7. Wat Plai Laem — A short ride from Big Buddha and far less crowded. The centrepiece is a striking white 18-armed image of Guanyin, the Goddess of Mercy, set over a lake full of fish. Beautiful, photogenic and genuinely peaceful. Cost: free. Local tip: buy a bag of fish food for a few baht and feed the catfish from the bridge.
8. Secret Buddha Garden (Magic Garden) — High in the hills above Lamai, a quirky collection of statues built by a local fruit farmer in the 1970s, scattered through jungle around a stream. Atmospheric, weird and worth the bumpy ride for the views alone. Cost: ~80 THB. Local tip: only attempt the steep access road on a scooter if you are confident, or take a 4x4 tour — the final stretch is rough.
9. Lad Koh & Jungle Club Viewpoints — Lad Koh viewpoint sits on the coastal road between Chaweng and Lamai with a free panorama over the east coast. For something special, head up to the Jungle Club, a mountain-top café with one of the best views on Samui. Cost: free (Lad Koh) / café spend (Jungle Club). Local tip: the road up to Jungle Club is steep — take it slow, or book a transfer rather than risk it on a scooter.
Adventure & Activities
10. Ang Thong National Marine Park Day Trip — The unmissable day out: 42 limestone islands rising from emerald water, about 90 minutes by boat from Samui. Snorkel, kayak through hidden lagoons, hike to the famous Emerald Lake viewpoint and swim off deserted beaches. Cost: ~1,500–2,500 THB including lunch and park fee. Time: full day. Local tip: book a smaller speedboat group rather than a big ferry — you reach the lagoons before the crowds. Browse boat trips and experiences in the KOHME activities for Koh Samui.
11. Snorkelling & Diving at Koh Tao and Koh Nang Yuan — Samui sits two hours from some of Thailand’s best diving. Day trips run to Koh Tao and the iconic three-island sandbar of Koh Nang Yuan, with shallow reefs perfect for snorkellers and turtle sightings. Cost: ~2,000–3,500 THB for a full day. Local tip: if you want to learn to dive, Koh Tao is one of the cheapest places on earth to get PADI certified — make it a side trip.
12. Jungle Safari & ATV Adventure — Trade the beach for the muddy interior: 4x4 safari tours and ATV/quad rides climb to viewpoints, waterfalls and viewpoint cafés deep in the hills. Bumpy, dusty and good fun. Cost: ~1,200–2,000 THB for a half-day. Local tip: wear clothes you do not mind ruining, and confirm the route includes Na Muang 2 and a hilltop viewpoint.
13. Zipline Through the Jungle — Fly through the canopy on a network of cables and sky-bridges in the central hills above Chaweng and Lamai. A solid adrenaline hit with treetop views, suitable for most ages. Cost: ~1,200–1,800 THB. Local tip: morning slots are cooler and less busy; many courses include hotel pick-up.
14. Visit an Ethical Elephant Sanctuary — Samui has genuine ethical sanctuaries where rescued elephants are observed, fed and bathed — with absolutely no riding and no circus-style shows. Please only support no-riding, observation-and-feeding sanctuaries; riding harms the animals’ spines and the “trick” camps rely on cruel training. Cost: ~2,500–3,000 THB. Time: half-day. Local tip: check the camp explicitly bans riding and bull-hooks before you book — if it offers rides, walk away.
15. Watch a Muay Thai Match — Thailand’s national sport, live and loud. Chaweng Stadium and Petchbuncha Stadium (Chaweng) host regular fight nights with local and international fighters, traditional music and a roaring crowd. Cost: ~1,500–2,000 THB ringside, less for upper seats. Local tip: fights usually start with the smaller, lighter bouts — arrive a little late if you only want the main events.
16. Go-Karting — Samui has an open-air go-kart track near Bophut with karts for adults and kids. A fast, family-friendly way to spend an hour, especially good as a rainy-afternoon backup. Cost: ~500–900 THB per session. Local tip: go in the late afternoon when the track surface has cooled and the heat is bearable.
17. Book a Court at Grand Samui Badminton — A great-value, air-conditioned escape from the heat (or the rain): proper indoor badminton courts you can book by the hour. Ideal for groups, families and anyone wanting to move without melting. Cost: ~345 THB per court, per hour. Local tip: courts are bookable by the hour through the KOHME app — handy for grabbing a slot on a wet afternoon.
Food & Nightlife
18. Bophut Fisherman’s Village & Friday Walking Street — A restored old-Chinese-shophouse strip on the north coast, now full of boutiques, wine bars and good restaurants. On Friday evenings it becomes the island’s best walking street, packed with food stalls and live music. Cost: free to wander. Local tip: come hungry on Friday and graze your way down the street — the seafood skewers and mango sticky rice are the move.
19. Lamai & Fisherman’s Night Markets — For cheap, authentic Thai street food, the Lamai night market (Sunday) and Hua Thanon fresh market are where locals actually eat. Pad thai, grilled fish, som tam and a hundred things on sticks for a fraction of resort prices. Cost: dishes ~50–120 THB. Local tip: follow the queues of Thai customers — that is always the best stall.
20. Spend an Afternoon at a Beach Club — Samui does beach clubs well. CoCo Tam’s in Fisherman’s Village is famous for swing seats, fire shows and sunset cocktails; Nikki Beach in Lipa Noi brings glossy day-bed glamour on the west coast (the best side for sunset). Cost: drinks from ~250 THB; loungers may need a minimum spend. Local tip: the west coast (Lipa Noi, Nathon) faces the sunset — book the west for golden hour, the east for swimming.
21. Take a Thai Cooking Class — Learn to make green curry, tom yum and pad thai from scratch, usually starting with a guided market visit. A fun half-day and the most useful souvenir you can take home. Cost: ~1,200–1,800 THB including ingredients and a recipe book. Local tip: pick a class capped at a small group so you actually get hands-on time at the wok.
Prefer to let someone else do the cooking? When you are back at your villa, you can order from local restaurants with Koh Samui food delivery in the KOHME app.
Wellness
22. Join a Yoga Class with Marga Yoga — Samui has a strong wellness scene, and Marga Yoga runs weekly classes — Pranayama (breathwork), Hatha and Yin — suitable for everyone from beginners to seasoned practitioners. A perfect slow morning between beach days. Cost: from ~400 THB per class. Local tip: you can book a Marga Yoga class through the KOHME app — reserve your mat in advance, classes fill up.
23. Have a Proper Spa & Wellness Day — From hour-long beachfront Thai massages to full-day spa packages and Samui’s famous detox retreats, this is the island for resetting. A street-side Thai massage is one of the great-value pleasures of any trip. Cost: massage from ~300 THB/hour; spa days far more. Local tip: a 300–400 THB foot massage after a day on the scooter is the best money you will spend all week.
24. Play a Round of Golf — Santiburi Samui Country Club is a genuinely spectacular hillside 18-hole course with sea views on the north coast, plus there are smaller courses and driving ranges around the island. Cost: green fees vary, typically ~3,000–5,000 THB. Local tip: book the earliest tee time to dodge the midday heat and the afternoon clouds.
Day Trips & Getting Around
25. Rent a Scooter or Car and Drive the Ring Road — The single best way to unlock everything on this list. The 51 km ring road links the beaches, temples, waterfalls and viewpoints, and a half-day loop is one of the most satisfying things to do on Samui. Cost: scooters ~200–300 THB/day, small cars from ~900 THB/day. Local tip: Samui traffic is faster and busier than the smaller islands — wear a helmet, carry an International Driving Permit, and you can rent a scooter or car at fair local prices through the KOHME app.
Bonus day trips: Koh Phangan (home of the Full Moon Party, but also gorgeous quiet beaches) is a 30-minute ferry away, and Koh Tao is reachable as a long day trip for diving. Both are easy add-ons if you have a week.
When to Go: Samui Seasons
Samui runs on its own weather clock, separate from the Andaman side. The driest, sunniest stretches are roughly February to April and June to September — ideal for Ang Thong boat trips and diving. The wettest months are October to December, peaking in November, though you often still get sunny mornings with short, sharp afternoon storms. If you visit in the green season, build in flexible days and keep the indoor options — badminton, cooking class, spa, Muay Thai — as rainy-day backups.
Frequently Asked Questions
How many days do you need on Koh Samui?
Four to five days is the sweet spot: two beach days, one full-day Ang Thong boat trip, one ring-road temple-and-waterfall loop, and one day for an activity or spa. A week lets you add a Koh Tao or Koh Phangan side trip.
What is the best time to visit Koh Samui?
February–April and June–September are the driest and best for boat trips. The heaviest rain falls roughly October–December, peaking in November — but even then you usually get sunny mornings.
What are the best free things to do on Koh Samui?
Big Buddha, Wat Plai Laem, Hin Ta & Hin Yai rocks, Na Muang Waterfall 1, the Lad Koh viewpoint and a sunset stroll through Bophut Fisherman’s Village are all free.
Is Koh Samui good for families?
Very. Chaweng and Maenam have calm, shallow water, and there is plenty for kids — Secret Buddha Garden, ethical elephant sanctuaries, go-karting and gentle waterfall walks. The airport makes arriving with children much easier than other islands.
How do you get around Koh Samui?
A scooter or small car is most flexible for the ring road. Songthaews run the main beach strips, taxis and Grab are available but pricey, and you can rent a scooter or car through the KOHME app.
Do you need to book activities in advance?
Book Ang Thong boat trips and diving a day or two ahead in high season. Temples, beaches and viewpoints need no booking. Tours, classes, courts and rentals can all be browsed in the KOHME app.
Book It All in One App
KOHME is built on the islands, for the islands. Many of the experiences above — yoga with Marga Yoga, a court at Grand Samui Badminton, scooter and car rental, plus tours and experiences added regularly — are bookable in the app at fair local prices, alongside Koh Samui food delivery for when you would rather stay by the pool. Browse everything on the Koh Samui page or get the KOHME app to book in a couple of taps.
Activities on Koh Samui
Book through KOHME — compare prices & read reviews