Is Koh Mak worth visiting?
You want three days on a bicycle between empty beaches, with nothing louder than the sea. Then yes, Koh Mak is worth it, for quiet, cycling and clear, calm water. It is a small, flat island of coconut and rubber plantations, with long beaches, few cars and a slow pace. It is not for nightlife, shopping or big resorts. It suits you if you want to switch off for a few days.
The island is small enough to know in a day. Quiet lanes run between plantations and down to the beaches. Life here moves at the speed of the tide.
DASTA, the government's Designated Areas for Sustainable Tourism Administration, describes Koh Mak as the first target of Thailand's low-carbon tourism project. The island has won international attention for this work.
The honest limits are clear. There are no five-star hotels with long lists of facilities. Restaurants are simple, and nights are dark and quiet. Boats run less often in the rainy season. If you want all of that, Koh Kood's top resorts are a short boat ride away.
Example plan: three days. On day one, arrive by speedboat at lunch, swim and watch the sunset from Ao Kao. On day two, take a private boat to Koh Rang for snorkelling and lunch at sea. On day three, cycle the island, kayak to Koh Kham and end with a private dinner on the beach.
Our call: treat Koh Mak as two or three nights in a longer island trip, often combined with Koh Kood or Koh Chang.
Who is Koh Mak best for?
Koh Mak is best for families with young children, couples who want calm, cyclists, and guests combining it with Koh Kood. The sea is shallow and gentle on many beaches, roads are quiet, and the island is small enough to explore without a car. It is a peaceful, safe-feeling place.
Families with young children. Shallow water, soft sand and gentle waves make many beaches ideal for small children.
Couples. Koh Mak is quiet and romantic. Sunset dinners on the sand, long swims and empty beaches give you time together.
Cyclists and walkers. The island is mostly flat, so cycling between beaches is easy and pleasant. Walkers enjoy the coastal paths and plantation lanes.
Wellness guests. With no nightlife and little traffic, Koh Mak is a natural place for yoga, long swims, reading and early nights. A private teacher can come to your villa each morning.
Island-hoppers. Koh Mak sits between Koh Chang and Koh Kood, so it fits naturally into a trip across the Trat islands by private speedboat.
Which beach on Koh Mak should you choose?
Choose Ao Suan Yai for a long, calm beach with gentle water, Ao Kao for sunsets and resort choice. Ao Pra for a quieter stay. Laem Son has a sandbar and wide views. Ao Nid is the main pier, not a swimming beach. Ao Lom is a small, peaceful bay. Each suits a different stay.
Ao Suan Yai. A long, curved bay with soft sand and shallow, calm water. It is one of the best beaches on the island for families, and Koh Mak Resort sits here.
Ao Kao. Ao Kao is the island's busiest beach, with several resorts and beach restaurants. It is a favourite spot for sunset.
Ao Pra. Ao Pra is quieter and more secluded, with a long sweep of sand. Mira Montra The Beachfront Resort sits here. It suits couples who want peace.
Laem Son. A sandy point where a sandbar runs out into the sea at low tide. It is a lovely place for a walk and photographs at sunset.
Ao Nid. The main pier for boats to the mainland and other islands, with a small fishing village.
Ao Lom. A small, quiet bay with calm water. It suits a morning swim and a picnic.
Beach etiquette is simple. Topless sunbathing is not accepted in Thailand. Wear a cover-up when you leave the beach for a village shop or café.
Your choice of beach decides the feel of your stay. Our Thai team checks which resorts are open in the low season, and if Koh Kood suits you better, we say so.
Where should you stay on Koh Mak?
Stay at Mira Montra The Beachfront Resort on Ao Pra for a calm, stylish stay. Koh Mak Resort on Ao Suan Yai suits a family-friendly beach. The Mak Trat is a small hotel with beachfront villas. For groups, a private villa with staff is the other route. None is a large five-star resort.
Mira Montra The Beachfront Resort. On quiet Ao Pra Beach, Mira Montra gives couples and families a beachfront base away from the busier bays. Ask for a villa closest to the sand.
Koh Mak Resort. On Ao Suan Yai, this resort sits on one of the calmest beaches on the island, with shallow water that suits young children. It is a relaxed, practical choice.
The Mak Trat. This small hotel is on Koh Mak itself, in Ko Kut District, its official site confirms. It offers beachfront villas. It suits guests who want a quiet, simple base.
A private villa. For families and groups, a private villa with a cook and housekeeping can be arranged. Picture a four-bedroom beach house with a garden, a deck over the sand and bicycles waiting at the door. Tanner describes each one to you before you choose.
For more luxury. If you want a resort with a full spa, fine dining and private-pool villas, stay on Koh Kood. Visit Koh Mak for a day. Soneva Kiri on Koh Kood has 32 private villas of one to five bedrooms, its own site says. A private speedboat makes the crossing easy.
Book early for December to February and for Chinese New Year. The island has few rooms, and the best villas fill first.
What can you do on Koh Mak?
The best things to do on Koh Mak are cycling the quiet island lanes and kayaking to Koh Kham. Walk the Laem Son sandbar at sunset, take a cooking class with local food and visit the coconut and rubber plantations. Add snorkelling trips to the nearby islands, and the days fill gently.
Cycling. The island is mostly flat, and the lanes between beaches pass through coconut groves and rubber plantations. Bicycles are the best way to explore. Ask your resort for good bikes and a simple map.
Kayaking to Koh Kham. Koh Kham is a small island just off the coast of Koh Mak. In calm weather, you paddle out with a guide, swim in clear water and paddle back. Life jackets are essential.
Laem Son at sunset. Walk out along the sandbar as the sun sets over the sea. It is one of the most peaceful moments of a stay.
Cooking class. A private class with a local cook shows you how to make seafood curries and salads from the island's ingredients. You eat what you cook, often on a terrace by the sea.
Plantations and village life. Koh Mak's families have farmed coconuts and rubber for generations. A guided visit shows how the work is done and how the island lives.
The low-carbon island. DASTA runs an online Koh Mak Low Carbon Calculator that measures the carbon footprint of every part of island life. A three-year agreement supports a seagrass (blue carbon) project on Koh Mak and Koh Kradad, DASTA says. The partners are DASTA, Bangchak Group, Kasetsart University, the island council and the Ban Ao Nid community enterprise.
Recognition. Koh Mak was named one of the Green Destinations Top 100 Stories in 2022 and won a Green Destinations Story Award in 2023, DASTA reports.
Fishing and snorkelling. A local boatman can take you out for a morning of line fishing, then cook your catch for lunch.
Photography. Koh Mak's light is soft and warm at both ends of the day. Plan for sunrise over the east-coast bays and sunset at Ao Kao or Laem Son.
Spa and rest. Several resorts offer Thai massage on the beach or in garden salas.
Which islands can you visit from Koh Mak?
From Koh Mak you can visit Koh Kham and the Koh Rang marine area in Mu Ko Chang National Park. Koh Wai and Koh Kood are also close by boat. Koh Rang is our pick for snorkelling in the area. Koh Kood is larger, with waterfalls and luxury resorts. A private speedboat lets you see two or three islands in one day.
Koh Rang. These small islands sit inside Mu Ko Chang National Park. The foreign entry fee is ฿200 for adults and ฿100 for children, the Department of National Parks says. The water is clear and the reefs are colourful. Go on a calm morning.
Koh Wai. A small island between Koh Mak and Koh Chang, with clear water and rocky coves. It is a pleasant stop for a swim and lunch.
Koh Kood. One of Thailand's largest islands, Koh Kood has long beaches, waterfalls in the forest and the area's most luxurious resorts. A day trip by private speedboat is easy. See our Koh Kood guide.
Koh Chang. The largest island in the group has mountains, waterfalls and more restaurants. See our Koh Chang guide.
Park closures. The Royal Gazette notice of 9 January 2026 lists Ko Thian, Ko Kra and Ko Thonglang in Mu Ko Chang National Park as closed indefinitely. We check the latest notices before your boat day.
Reef-safe sunscreen. The Department of National Parks bans sunscreen with oxybenzone, octinoxate, 4-MBC or butylparaben in national parks, with fines of up to ฿100,000.
A private speedboat gives you control over the day. See our private island day charter for how it works.
Koh Kood or Koh Mak: which suits you?
Choose Koh Kood for bigger landscapes, waterfalls and the most luxurious resorts, including Soneva Kiri. Choose Koh Mak for a flat, walkable island with a simple, village feel. Do both, with a few nights on each, joined by a short private speedboat ride.
Koh Kood is larger and wilder, with forest-covered hills and long beaches. It suits you if you want five-star service, spa days and private-pool villas.
Koh Mak is smaller and gentler. It suits families with young children, cyclists and anyone who wants to slow down in a real island community.
The crossing between them is short by speedboat, so moving islands takes only part of a morning.
The plan we suggest is three nights on Koh Kood for luxury and two on Koh Mak for calm. We can reverse it, depending on your priorities.
Where should you eat on Koh Mak?
Eat at your resort, at the beach cafés on Ao Kao and Ao Suan Yai, and at simple seafood restaurants near Ao Nid pier. Koh Mak is small, so choices are limited, but the seafood is fresh and the settings are lovely. For a special evening, arrange a private dinner on the beach.
Seafood. Grilled fish, squid and prawns, crab curries and spicy salads are the island's best dishes.
Beach cafés. Small cafés on the beaches serve coffee, fruit shakes and simple Thai and Western dishes. They are perfect for a long lunch with your feet in the sand.
A private dinner. We arrange dinners on a quiet beach, with a table, lanterns and a chef. It is one of the best evenings of a Koh Mak stay.
Fruit and coconuts. The island grows its own coconuts, and fresh coconut water is the best drink after a bicycle ride.
Dietary needs. Halal and vegetarian food can be arranged with notice. Tell us before you arrive.
When is the best time to visit Koh Mak?
The best time to visit Koh Mak is November to April, when the sea is calm and boats run often. The Thai Meteorological Department's calendar puts the rainy season from mid-May to mid-October. In those months, boat services drop and some days are rough, though the island is green and very quiet.
After storms, the water can be cloudy for a day or two, so keep your boat day flexible.
December to February is the high season, with dry, sunny days and calm seas. March and April are hot and calm.
May to October brings rain and wind on some days. Some resorts close or reduce services, and boats run less often.
- November to April: best, calm sea and frequent boats
- December to February: high season, book early
- May to October: rainy season, fewer boats, very quiet
How do you get to Koh Mak?
Fly from Bangkok to Trat in about 1 hour with Bangkok Airways, drive to Laem Sok pier, and take a speedboat to Koh Mak. The Trat Provincial PR Office lists speedboats to Koh Mak from Laem Sok and from Laem Ngop. Inter-island boats also link Koh Mak with Koh Chang and Koh Kood.
By air and boat. This is the fastest route. A chauffeur meets you at Trat airport and drives you to Laem Sok pier, where your boat waits.
By road. A private car from Bangkok to Laem Sok makes a long but comfortable drive along the eastern coast. Break the journey for lunch.
By private speedboat. A private boat from Laem Sok or from Koh Chang takes you straight to your resort beach, on your schedule.
Between islands. Public boats link Koh Mak with Koh Chang and Koh Kood in the dry season. Times change by season and operator, so check on the day. Our Bangkok to Koh Kood route guide covers the same mainland route.
Can you travel to Koh Mak now? Yes. Australia's Smartraveller tells visitors not to go within 10 km of the Cambodian land border in several provinces, including mainland Trat. Koh Mak is an island offshore and is not named in that warning. Check your own government's advice before you travel.
Luggage. Speedboats take normal suitcases, but space is tight on public boats. With a private boat, the crew carries your bags from the car to the boat and on to your villa. Pack light clothes, reef shoes and a light rain jacket.
Rainy season. From mid-May to mid-October, fewer boats run, and some may be cancelled in rough weather. Leave a spare day before an international flight.
