Woman practising yoga in the crystal-clear shallow water of Koh Mak, Thailand, with a palm-fringed beach in the background
Gulf of Thailand · Trat Province

Koh Mak Island, Thailand — inside information

A quiet, eco-friendly island with no jet skis, no traffic and no crowds — but plenty of sport, reefs and family-run kitchens.

Protected by local families, Koh Mak offers pristine beaches, shaded palm groves and authentic family-run restaurants.

An active local community provides plenty to do: Muay Thai, tennis, pickleball, fitness gyms, beachfront yoga and coral reef diving.

The right choice for solo travellers, long-term guests and anyone looking to slow down and stay fit & healthy.

Reaching the island is easy, with direct transport from Bangkok and a quick 50-minute speedboat ride from Trat.

An introduction

Discover Koh Mak: the peaceful island paradise in Trat, Thailand

Escape the crowds and experience Koh Mak, a serene island in the eastern Gulf of Thailand known for its untouched beauty, eco-friendly charm, and local hospitality.

Why choose Koh Mak over Koh Chang or Koh Kood?

Unlike neighbouring Koh Chang or Koh Kood, Koh Mak offers quiet, uncrowded beaches with no jet skis, no loud motor sports, and no heavy traffic. Protected by local families for decades, the island avoids mass development in favour of charming boutique hotels, eco-resorts, sports facilities, and authentic family-run restaurants. For a full side-by-side, read Koh Mak vs Koh Kood.

Top beaches & hidden gems

  • Ao Kao Beach: long, powdery white sand lined with cosy beachfront resorts.
  • Ao Suan Yai: calm, clear waters offering stunning views of nearby islets.
  • Hidden coves: secret coastal spots waiting to be explored by kayak or scooter.

Things to do on Koh Mak

  • Water sports & coral reefs: world-class diving and snorkelling, paddleboarding, and kayaking.
  • Fitness & wellness: train at the local Muay Thai camp, play tennis or pickleball, drop into a gym, or unwind with daily beachfront yoga.
  • Authentic local dining: Thai food at small, family-owned kitchens where locals cook with fresh ingredients.

How to get to Koh Mak

  • Speedboat from Trat: a 50-minute speedboat from Laem Ngop Pier.
  • Travel options: a short domestic flight from Bangkok to Trat Airport (TDX), or a direct bus/van.
  • Ferry schedules: frequent daily departures, year-round.
Snorkeler stepping out of clear shallow water
Snorkeling on Koh Mak
Aerial view of a palm-lined Koh Mak beach with turquoise water and coral reef
Beach of White Sand Resort
Player walking through a lush tropical garden path to the tennis courts on Koh Mak
Walk to the Koh Mak Tennis Club
Highlights

Nature, Sports, Serenity

Quick facts

Know before you go

The essentials at a glance — geography, getting around, and what the island deliberately doesn't have.

  • Location
    Trat Province, Eastern Gulf of Thailand, Koh Chang & Koh Kood, neighboring 52 islands. Size: 16km2
  • Population
    ~1,000 permanent residents. Koh Mak is peaceful. 
  • Main beaches
    Ao Kao (southwest) & Ao Suan Yai (northwest)
  • Main pier
    Ao Nid, on the southeast coast, home of Boonsiri catamaran and Koh Mak Ferry Speedboat
  • Ferries
    Local Speedboats "Panan" (recommended) and Koh Mak Ferry & commercial Catamaran Ferry Boonsiri
  • Convenience stores
    No Franchises — kept that way by the community to protect the locally run shops and convenience stores. There are about 12 local shops. on the island.
  • ATMs
    One ATM on the island — bring cash, it is recommended to pay rooms and activities in advance per bank transfer. 
  • Best season
    January - December, every year. Clear air in low-season, more wind in high-season. 
Sunrise over Ao Nid pier with a tall coconut palm silhouetted against the sky, Koh Mak, Thailand
Sunrise at Ao Nid Pier, home of Koh Mak Ferry and Boonsiri.
Frequently asked

Everything else worth knowing

Quick answers to the questions travellers ask most often about Koh Mak — from getting there to what to pack for the green season.

General
What is Koh Mak?
Koh Mak (also written Koh Maak) is a small, privately owned island since 5 generations in eastern Thailand, located within the Ko Chang Marine National Park in Trat Province. At around 16 km², it sits approximately 40 km from the Trat coast and 20 km south of Koh Chang, 320km away from Bangkok. The island is known for its long, quiet beaches, coconut plantations, and a relaxed atmosphere that has so far resisted mass tourism. Sustainability, wellnes, fitness and sports are supported by the owners. Please support Koh Mak Island by choosing long stays (5 days or more, come with a purpose (for example, for sports or working remotely as a digital nomad), or staying with us as a solo traveler and benefit from better rates. 
What makes Koh Mak different from other Thai islands?

Koh Mak has no car ferry, no beer bars, no jet skis, no high-rise hotels, and no 7-Eleven on every corner. The majority of the land is still owned by five local families, who have actively kept large-scale developers away. The island is flat, largely car-free, and genuinely quiet. The Sunday Times once named it one of the world's top undiscovered islands, and the New York Times featured it as a place to find "Old Thailand." 

Fun Fact: The local islanders voted at a special "island meeting" of 400 inhabitants, 400 vs 0 votes against 7/11 to protect the island and local businesses, even though most of them actually would enjoy the benefits.

Is Koh Mak good for solo travellers?

Yes — Koh Mak is one of the easiest and safest islands in Thailand to visit on your own. Crime is virtually non-existent, locals are welcoming, and the small scale of the island means you quickly recognise familiar faces at the same beach bars, cafés and yoga decks.

It suits independent travellers, remote workers and digital nomads especially well: solid Wi-Fi at most resorts, a dedicated co-working space in the centre of the island, long-stay discounts, and plenty of activities — Muay Thai, tennis, yoga, kayaking, snorkelling — that are easy to join solo and a natural way to meet others.

If you book directly with us as a solo traveller, ask about single-occupancy rates and longer-stay discounts (5+ nights).

Is Koh Mak safe for solo female travellers?
Very. Koh Mak is widely considered one of the safest destinations in Thailand for women travelling alone. The island is small, low-key and free of the party-scene pressure found on busier islands. The main things to be mindful of are the same as anywhere tropical: ride scooters carefully (especially at night on unlit roads), swim in front of resorts, and keep an eye on the sun.
Do I need a visa to visit Thailand?

Most nationalities can enter Thailand visa-free, though the rules changed in mid-2026. The previous 60-day visa-free period has been reduced to 30 days. For longer stays there are excellent options including the Digital Nomad Visa (DTV), the Multiple Entry Tourist Visa, and the Retirement Visa. All visitors must also complete a free Thailand Digital Arrival Card (TDAC) before arrival.

Read our full Thailand Visa Guide →

Woman practising yoga tree pose on a quiet Koh Mak beach at golden sunset
Sunset yoga on Koh Mak — a peaceful end to the day
Getting There
How do I get to Koh Mak from Bangkok?

There are three main options:

  • By air + boat: Fly Bangkok Airways from Suvarnabhumi Airport to Trat Airport (about 1 hour). All Bangkok Airways flights are met by transfer services to the piers. From Laem Ngop Pier, speedboats take 50–60 minutes to reach Koh Mak. This is the fastest and most comfortable option.
  • By bus/minivan + boat: Take a bus or minivan from Bangkok's Eastern Bus Terminal (Ekkamai) to Trat — roughly 5–6 hours. From Trat, take a taxi or Songthaew to Laem Ngop Pier, then board a speedboat or ferry.
  • Electric Car BYD Dolphin or Sealion 7: Door-to-door from Bangkok to your room or villa on Koh Mak — the most comfortable and greenest option. Departure from Bangkok between 09:30–11:00 depending on season; arrival at your room on Koh Mak between 15:00–17:00. Includes water, 5G WiFi, one coffee stop, upscale car and reliable, experienced driver. From 2,500 Baht per person (3 people) or 6,000 Baht for one. Full details & booking →
Woman relaxing on a leaning palm tree over turquoise water at a quiet Koh Mak beach
Arrived on Koh Mak — turquoise water, soft sand and coconut palms
How do I get to Koh Mak from Koh Chang or Koh Kood?
In high season (November–May), daily speedboats and catamarans connect Koh Mak with both Koh Chang and Koh Kood. Most inter-island services pause from June to September; during that period only Boonsiri Ferry operates a daily inter-island route.
Is there a car ferry to Koh Mak?
No. There is no car ferry to Koh Mak. Cars must remain on the mainland. Motorbikes can sometimes be carried on certain boats for an extra fee — check with the operator in advance. This is one special positive aspect of Koh Mak and  postive for runners and bikers on the island. Of course the landowners have cars. 
How much does the speedboat cost?
A one-way speedboat ticket from the mainland (Laem Ngop Pier) is  550 Baht per person. Journey time is approximately 40–50 minutes. Please book the boat in advance.
Do boats run all year?
Speedboats and ferries run regularly all season. During the rainy season (June–October) local speedboat operator schedules are slightly reduced.Panan Speedboat, Koh Mak Ferry and  Boonsiri runs all year.
When to Visit
What is the best time to visit Koh Mak?

The most popular time is October 15th   to May 15th — Thailand's main season. Skies are clear, seas are calm, and temperatures are slightly lower. December, January and February are peak months with good beach conditions. October and May offer a great balance of good weather and fewer crowds. We recommend to visit Koh Mak May to September for the best island and remote experience. Boats and resort run all year.

Month by month detail is on our best time to visit Koh Mak guide, with temperatures, rainfall and sea conditions in the Koh Mak weather tables.

What is the green season (rainy season) like?

The green season runs from May to October. The weather is fine most of the time — expect tropical downpours (short, heavy bursts that typically clear within an hour) followed by warm sunshine and vivid blue skies. Between showers there are plenty of sunny hours, and the island looks its most lush and beautiful.

For many travellers this is actually the best time to visit. Prices are significantly lower, the island is genuinely quiet, and you experience Koh Mak the way it really is — unhurried, local, and authentic. Compare the seasons on our best time to visit Koh Mak page.

How is the weather during the rainy season on Koh Mak?

The rainy (green) season on Koh Mak runs roughly from May to October, with the wettest weeks usually in July, August and September. Temperatures stay warm at 27–32°C and the sea is bath-warm. Rain typically arrives as short, heavy tropical downpours — often in the late afternoon or overnight — rather than full days of grey drizzle.

Even in low season there are plenty of sunny days and long sunny hours between the showers. Many days look like this: a bright morning perfect for the beach or a bike ride, a fast downpour after lunch, then clear skies again by sundown. It is common to get 5–8 hours of sunshine on a typical green-season day, and full sunny days are not unusual.

The trade-off is well worth it: lush green jungle, dramatic skies, quiet beaches, fewer boats, and significantly lower prices on accommodation. See the full Koh Mak weather by month breakdown before you book.

Getting Around the Island
How do I get around Koh Mak?

The island is flat and compact, making it easy to explore. Options include:

  • Bicycle: The most popular choice. Rentals cost around 150–200 Baht per day. Ideal for the island's quiet lanes; note that bikes rarely come with lights.
  • Scooter/motorbike: Around 250 Baht per day, with discounts for multi-day rentals. Some dirt tracks lead to remote beaches — take care off the main roads.
  • Electric Golf cart: Available at some resorts and tour agencies. A good option for families with young children or elderly guests.
  • Songthaew (pickup truck): Available for fixed-price point-to-point hops around the island. 50 Baht per person, minimum 100 Baht. No scam on this island. 
Is there a taxi service?
There are several local taxis on the island. It is recommended to book directly with your hotel for better service — for example, free pick-up.
Beaches
What are the main beaches on Koh Mak?

There are two main beaches where most resorts are located:

  • Ao Kao Beach — the longest and most popular beach, on the western side of the island. White sand, calm water, and lined with palm trees. Home to White Sand Beach Resort and several other properties.
  • Ao Suan Yai — a quieter beach on the southwestern side, with a more local feel. Close to several Koh Mak village accommodations.

Beyond these two, smaller beaches are scattered around the island — many of them deserted. Exploring by scooter or mountain bike and following the dirt tracks to the shore often leads to empty stretches of sand with no resorts in sight.

Wooden rope swing over crystal-clear turquoise water at Ao Kao Beach, Koh Mak, Thailand
Ao Kao Beach — rope swing over clear turquoise shallows on Koh Mak's main swimming beach.
Leaning coconut palm over the calm blue sea at Ao Suan Yai Beach, Koh Mak, Thailand
Ao Suan Yai Beach — leaning palms and calm blue water on Koh Mak's quieter northwest coast.
Are the beaches crowded?
Never. Even during high season, the island never feels overrun. Deserted stretches of sand are easy to find at any time of year.
Is the water safe for swimming?

Yes. The water around Koh Mak is calm and clear, particularly on Ao Kao Beach. There are coral reefs close to shore near White Sand Beach Resort and the nearby island of Koh Rayang, making it excellent for snorkelling.

Leaning coconut palms over clear turquoise water at Ao Kao Beach, Koh Mak, Thailand
AO KAO BEACH · COCONUT PALMS & CLEAR WATER · WHITE SAND BEACH RESORT KOH MAK
Sports
What sports and activities are available on Koh Mak?
  • Snorkelling (coral reefs close to shore, particularly near Ao Kao and Koh Rayang)
  • Kayaking
  • Scuba diving (PADI-certified dive centres available; day trips to nearby reef sites)
  • Cycling tours of the island
  • Beach volleyball
  • Thai cooking classes
  • Freediving (with Koh Mak Divers)
  • Muay Thai
  • Tennis
  • Pickleball
  • Basketball
  • Coral pottery and tie-dye workshops
  • Disc golf
  • Visits to the local history museum
  • Weekly volunteer beach clean
  • and much more
Is there good snorkelling and diving?

Yes. Coral reefs lie close to shore near Ao Kao and Koh Rayang. The nearby Mu Ko Chang Marine National Park offers some of the best marine life in Thailand. Dive schools on the island and on neighbouring islands offer day trips to the best sites — see our Koh Mak snorkelling & diving guide.

Money & Practicalities
Are there ATMs on Koh Mak?
There is very limited ATM availability on the island — and they can be unreliable or run out of cash. Bring sufficient cash from the mainland before you arrive.
Do places accept card payments?
Some resorts and restaurants do, but many smaller establishments are cash-only. Do not rely on card payments alone.
Is there reliable internet on Koh Mak?
5G internet is available across the entire island — we recommend AIS as a provider. Almost every place offers WiFi, and the island also has fibre coverage. Connectivity is generally reasonable, though not as fast or consistent as on the mainland.
Is Koh Mak safe?
Yes. The island is considered very safe. Crime is rare. The main practical risks are scooter accidents on unpaved tracks and jellyfish in certain seasons — check locally before swimming.
Is Koh Mak suitable for digital nomads?

More than you might expect from a small island in the Gulf of Thailand. Koh Mak has invested seriously in its internet infrastructure — fibre WiFi is available throughout most resorts, and 5G mobile coverage reaches the island, making it easy to stay connected for video calls and remote work.

The green season (May–October) is particularly well-suited to the nomad lifestyle: prices drop, the island is quiet, and the slower pace makes it easy to find a productive rhythm. Good Times Sports Village in Koh Mak Village offers the island's only co-working space.

Sustainability & Environment
Is Koh Mak eco-friendly?

Koh Mak has built a reputation as one of Thailand's most environmentally conscious islands. The local community has run waste-reduction programmes and coral conservation initiatives for over a decade. There is no car ferry by design, keeping the island quiet and limiting emissions. Several resorts partner with organisations such as Coral Gardeners Thailand to protect the reef.

Bags of plastic bottles collected for recycling at a Koh Mak pier
Plastic Bottles Recycling on Koh Mak
Who owns Koh Mak?

The vast majority of land on Koh Mak is still owned by five local families (the Sudhidhanakul and Taveetekul families among them) who have resisted large-scale development and encouraged smaller, lower-impact resorts. This is the primary reason the island has retained its character. Read it in a local voice in thoughts of a fifth-generation islander.

Baan Sudhidhanakul — the founding family's heritage house on Koh Mak
Koh Mak Museum — Baan Sudhidhanakul
Are there temples and historical sites on Koh Mak?

Yes — the island's small Buddhist temple (Wat Koh Mak) sits on a hill above Ao Nid with sea views, guarded by ornate Yaksha statues and a whitewashed stupa. Monks gather here for ceremonies throughout the year, and visitors are welcome (shoulders and knees covered).

Whitewashed Buddhist stupa with a small golden Buddha statue at Wat Koh Mak
Koh Mak Temple & History · Stupa
Golden Yaksha guardian statue overlooking Ao Nid pier and the sea at Wat Koh Mak
Koh Mak Temple & History · Guardian above Ao Nid
Detailed Yaksha statue with golden Buddha figures in the background at Wat Koh Mak
Koh Mak Temple & History · Yaksha & Buddha
Row of Buddhist monks in orange robes chanting under trees by the sea on Koh Mak
Koh Mak Temple & History · Seaside ceremony
Ornate black Yaksha guardian statue overlooking Ao Nid pier and the turquoise sea at Wat Koh Mak, Thailand
Koh Mak Temple & History · Guardian overlooking Ao Nid and the sea
Accommodation
What types of accommodation are available?

Koh Mak offers something for every budget — from simple wooden bungalows on the beach (from around 400 Baht/night) to boutique villas and mid-range beachfront resorts. There are no large hotel chains or high-rise properties on the island. See where to stay →

When should I book accommodation?

During high season (December–February in particular), popular resorts fill up quickly — book well in advance. During low season, last-minute availability is usually easy to find. Please support local businesses and book directly with your hotel. Browse accommodation →

Muay Thai group standing in the shallows at sunset on Koh Mak beach
Muay Thai Camp on Koh Mak, Trat Province Thailand
Explore the Koh Mak Village Collection →Read guest reviews of Koh Mak Village →