Koh Samui First-Timers Guide: Everything Nobody Else Tells You (2026)

Where to Stay — Areas Breakdown

Koh Samui is a ring-road island. Almost everything happens on the east and north coasts. The west and south are quieter, more residential, and you'll need your own transport. Here's the honest breakdown:

Chaweng Beach — The Main Event

The longest beach (7km), the most hotels, the best nightlife, and the widest range of restaurants. If this is your first time in Thailand and you want convenience, Chaweng is the safe bet. The downside: it's the busiest, the most touristy, and accommodation prices are 20–30% higher than the rest of the island. North Chaweng is quieter than the strip around Soi Green Mango.

Lamai Beach — Chaweng's Quieter Cousin

Similar beach quality, better value hotels, fewer crowds. The Sunday night market is one of the best on the island. Grandfather and Grandmother Rocks (Hin Ta Hin Yai) are at the south end — worth a quick look. If you want Chaweng's convenience without the intensity, Lamai is the answer.

Bophut — Fisherman's Village

The boutique option. Preserved wooden shophouses, Friday Walking Street market, yoga studios, and grown-up restaurants. The beach is decent but not Samui's best — you come for the atmosphere. This is where couples and creative types gravitate. It's also close to the airport (10 minutes) and Big Buddha.

Maenam — Budget & Authentic

Long quiet beach, budget guesthouses, authentic Thai food stalls, and Thursday night market. This is where long-stay travellers and digital nomads end up. The vibe is more local than tourist. If you're on a tight budget or want a genuine Thai beach experience without the resort gloss, Maenam delivers.

South & West Coast — For Solitude Seekers

Taling Ngam, Lipa Noi, and the hillside areas south of Lamai are beautiful but isolated. You'll need a scooter or car. Some of Samui's best luxury resorts are here (Intercontinental, Nikki Beach), but there's nothing within walking distance. Only stay here if you want to be off-grid and have your own transport sorted.

For the full beach-by-beach breakdown, read our beaches ranked guide.

Money, ATMs & the THB 220 Trap

This is where most first-timers lose money unnecessarily. Thai ATMs charge a flat THB 220 fee on every foreign card withdrawal. That's on top of whatever your home bank charges. If you're withdrawing THB 5,000 at a time, that fee is 4.4% — which is awful.

The Smart Setup

Get a Wise multi-currency card before you leave home. It gives you the interbank exchange rate (the real rate, no markup) and works in Thai ATMs and at card terminals everywhere. You'll still pay the THB 220 ATM fee, but the exchange rate alone saves you 3–5% vs your regular bank card. We use Wise across all our Southeast Asia travel — it's not a recommendation for commission, it's genuinely what we carry.

Alternative fintech cards that work well in Thailand: Revolut, Monzo, and Starling (UK). All offer better rates than traditional banks. The key move: order a spare card before you travel. If an ATM eats your only card (it happens — the machines in 7-Elevens are the worst for this), you're stuck for days waiting for a replacement. A spare card in your hotel safe is cheap insurance.

Cash vs Card on Koh Samui

Samui is more card-friendly than most Thai islands. Hotels, restaurants, and tour operators in Chaweng and Lamai accept cards. But street food, songthaews, smaller shops, and anything south of Lamai is cash only. Rule of thumb: carry THB 2,000–3,000 in cash for daily spending, use your card for bigger purchases.

Exchange booths on Chaweng's main road give decent rates. Avoid the airport exchange counter — the rate is always worse. SuperRich (the orange one) has the best rates if you're exchanging large amounts.

Safety & Scams — The Honest Version

Koh Samui is generally safe. Violent crime against tourists is rare. But there are specific scams that catch first-timers every single week, and they're worth knowing about before you arrive.

The Jet Ski Scam

This is Samui's most notorious scam and it's been running for years. You rent a jet ski on Chaweng or Lamai beach. When you return it, the operator "finds" damage (often pre-existing) and demands THB 10,000–30,000 for repairs. They can be aggressive about it. Our advice: don't rent jet skis on Koh Samui. It's not worth the risk. If you want water activities, book through a reputable tour operator via Viator or GetYourGuide — they're accountable and have refund policies.

Taxi & Songthaew Overcharging

Koh Samui has no metered taxis. Everything is fixed-price, and the "fixed" price is whatever the driver thinks you'll pay. Songthaews (red pickup trucks) are the local shared transport — they're cheap when shared (THB 50–100) but drivers sometimes quote THB 300–500 for short trips if they think you don't know the price. Grab works on Samui and is usually 30–50% cheaper than a random songthaew. Always check Grab first.

Street Connect Four with Kids

Children (and sometimes adults) approach tourists in bars and restaurant areas to play Connect Four for money. It seems fun and harmless. It's not — they're extremely good at it and the stakes escalate quickly. Politely decline and move on.

Drink Spiking

Reported occasionally in Chaweng's nightlife area, especially around Full Moon Party periods when Koh Phangan overflow hits Samui. Standard precautions: don't leave drinks unattended, don't accept drinks from strangers, and stick to reputable bars. Chaweng's Soi Green Mango is the main nightlife strip — busy and generally safe, but watch your belongings.

Motorbikes — The Honest Truth

Samui has one of the highest motorbike accident rates in Thailand. The island's roads are hilly, winding, and the ring road has blind corners. Add rain, sand on the road, and tourists who haven't ridden a bike before — and you get a hospital visit almost every day.

Rental prices: THB 200–350/day for a Honda Click 125cc. Always rent from a proper shop (not a beach stand), leave a photocopy of your passport (never the original), and check the brakes before you ride. If you're not an experienced rider, use Grab or rent a car instead. There's no shame in staying alive.

Take a photo wearing the helmet — your insurance company may ask for evidence you were wearing one. Download your insurance app and save the policy number as a phone contact before you get on the bike. These are the things you do before you need them.

Travel Insurance — Non-Negotiable

Don't come to Koh Samui without insurance. Not because the island is dangerous — it's not — but because one hospital visit without coverage can wipe out your entire trip budget. Bangkok Hospital Samui is excellent but expensive. A simple consultation with antibiotics can cost THB 3,000–5,000. Anything involving imaging or overnight stays is THB 20,000+.

We use and recommend SafetyWing Nomad Insurance — it starts from $42/month, has no fixed end date (useful for open-ended trips), covers medical, trip interruption, and lost luggage. It also covers motorbike incidents up to 125cc if you have a valid licence.

Getting Around the Island

Koh Samui has a 50km ring road that circles the entire island. Most journeys take 15–40 minutes. Your options:

• Grab — Works on Samui. Usually cheapest for point-to-point trips. Not always available late at night or in the south.
• Songthaew (shared pickup truck) — THB 50–100 on the main routes. Wave one down on the ring road and tell the driver where you're going. They only run until about 6pm on most routes.
• Motorbike rental — THB 200–350/day. Freedom, but read the motorbikes section above first.
• Car rental — From THB 800–1,500/day. Best for families or groups. Driving is on the left. Book through reputable agencies, not beach stands.
• Private taxi — THB 300–800 per trip depending on distance. No meters. Always agree the price before getting in.

For day trips and activities, booking through Viator or GetYourGuide usually includes hotel pickup and drop-off — which saves you the hassle of figuring out transport.

For inter-island ferries to Koh Phangan and Koh Tao, book through 12Go — it compares all operators and sends e-tickets to your phone. See our getting here guide for the full ferry breakdown.

SIM Cards & WiFi

Get a Thai SIM card at the airport when you arrive. Bangkok Airways arrivals at USM have AIS and TrueMove counters right outside the exit. A tourist SIM with 15GB data for 15 days costs about THB 299. If you fly into Surat Thani instead, buy one at any 7-Eleven — the staff will set it up for you.

eSIM option: If your phone supports eSIM (most phones from 2020+), you can skip the physical SIM entirely. Providers like Airalo offer Thailand eSIMs you activate before you fly — data works the moment you land. We're currently finalising our eSIM partner — when it goes live, the hidden card below will activate across all guides.

AIS has the best coverage on Koh Samui and across the Gulf islands (important if you're island hopping to Koh Phangan or Koh Tao). TrueMove is fine in tourist areas but can drop in the south and west of the island.

WiFi is available at most hotels and cafes in Chaweng, Lamai, and Bophut. Don't rely on it for anything time-sensitive — speeds vary wildly. If you need reliable internet for work or video calls, your 4G SIM will be faster than most hotel WiFi.

Food & Drinking Water

Don't drink the tap water — this applies everywhere in Thailand. Buy bottled water (THB 10–15 from 7-Eleven) or refill at your hotel. Ice in restaurants is generally safe — commercial ice is made from filtered water.

Eating on Samui ranges from THB 50 street food to THB 2,000+ fine dining. The night markets are the best value: Lamai Sunday Market, Maenam Thursday Market, and Fisherman's Village Friday Walking Street. Budget THB 100–300 for a full meal at any of these.

If you have a sensitive stomach, start with cooked food from busy stalls (high turnover = fresh food) and work your way up to the adventurous stuff. Pack mosquito repellent for evening markets — dengue is present on Koh Samui, especially during rainy season (Oct–Dec).

What to Pack for Koh Samui

Samui is tropical, humid, and casual. Here's what you actually need:

Essentials

• Reef-safe sunscreen SPF 50 — the sun is stronger than you think, especially on the water
• DEET mosquito repellent — dengue is real, especially Oct–Dec
• Dry bag — for boat trips and sudden tropical rain
• Reef shoes — rocky entries at south coast beaches and Ang Thong Marine Park
• Waterproof phone case — essential for boat trips and snorkelling
• Universal travel adapter — Thailand uses A/B/C mixed sockets

For Activities

• Rash vest — sun protection for snorkelling and boat days
• Snorkel mask — tour-provided gear is often poor quality
• Power bank — full-day trips drain your phone fast
• Packable rain jacket — sudden downpours, especially May–November

Visa & Entry Rules (2026)

Most nationalities get 60 days visa-free on arrival in Thailand (changed from 30 days in 2024). Passport must be valid for at least 6 months. You'll need to complete the Thailand Digital Arrival Card (TDAC) online before you travel — this replaced the old paper TM.6 form and has been mandatory since May 2025.

If you want to stay longer, a 30-day extension is available at the Koh Samui Immigration Office (near Nathon) for THB 1,900. Bring passport photos, copies of your passport, and the entry stamp page. Arrive early — the office gets busy.

The 5-Minute Pre-Flight Checklist

Before you leave for the airport, run through this: