The River Retreat Koh Mak
The River Retreat Koh Mak is a tourist attraction situated on Koh Mak, a small and relatively undeveloped island in Trat Province, not far from the better-known Koh Chang. The property sits within one of Thailand's quieter island destinations, where the pace is deliberately slow and the landscape remains largely unspoiled — making it an appealing option for travellers looking to step away from busier resort areas. Guests can expect a relaxed, nature-focused atmosphere that reflects the character of Koh Mak itself. The retreat holds a strong rating from visitors, suggesting a consistently positive experience in terms of comfort, hospitality, or setting. Open every day of the week from 7:00 in the morning through to midnight, it accommodates both early risers looking to make the most of the island and those enjoying a leisurely evening. Practically speaking, Koh Mak is best reached via ferry services that typically connect through Laem Ngop pier in Trat, with journey times varying by season and boat type. The island is smaller and less commercialised than neighbouring Koh Chang, so travellers should come prepared with enough cash and any specialist supplies they may need, as amenities on the island are more limited. Visiting between November and April offers the most reliable weather, with calmer seas and lower humidity. Checking directly with the retreat via their website before arrival is advisable to confirm availability and any ferry transfer arrangements they may offer.
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Experience hints
Pair your visit. After The River Retreat Koh Mak, round out your day in Koh Chang with contrasting stops nearby.
Also Popular in Koh Chang

Mu Ko Chang National Park
A protected marine and jungle park spanning Koh Chang and surrounding islands, open daily.

Khlong Phlu Waterfall
A jungle waterfall with a large natural swimming hole, deep in the heart of Koh Chang.

Kai Bae Viewpoint
A scenic sunset viewpoint on Koh Chang where wild monkeys roam freely above the sea.

KC Grande Resort Koh Chang
Beachfront spa resort on Koh Chang with 4 pools, 3 pool bars, 2 restaurants, and a full spa.
The River Retreat Koh Mak: Frequently Asked Questions
Is The River Retreat Koh Mak worth visiting?
The River Retreat Koh Mak holds a 4.6★ rating from 41 Google reviews, placing it among the highest-rated islands in Koh Chang.
What are the opening hours of The River Retreat Koh Mak?
The River Retreat Koh Mak is typically open 07:00-00:00 — see the full day-by-day schedule in the location info on this page. Hours can change on Thai public holidays, so check ahead for holiday visits.
When is the best time to visit The River Retreat Koh Mak?
The best months to visit Koh Chang are November – March, with the most reliable weather. Crowds peak in December – January — going early in the day usually means fewer people. Months to think twice about: June – September (rough seas, many closures).
Where is The River Retreat Koh Mak located?
The River Retreat Koh Mak is at 116 Tambon Ko Mak, Amphoe Ko Kut, Chang Wat Trat 23000, Thailand, in Koh Chang. Getting around Koh Chang: Shared songthaews along the west-coast road; Motorbike rental (฿200–300/day — the hills between beaches are steep, ride carefully).
Location Info
116 Tambon Ko Mak, Amphoe Ko Kut, Chang Wat Trat 23000, Thailand+66 82 680 5840www.riverretreat-kohmak.com/Visitor Information
Best time to visit
November – March
Avoid: June – September (rough seas, many closures)
Rainy season
May – October
Avg. temperature
24°C – 32°C(75°F – 90°F)
Crowds
Peak: December – January
Getting there
No airport on the island. From Bangkok, take a bus or minivan to Trat (5–6 hrs) or fly Bangkok Airways to Trat (TDX, ~1 hr), then the car ferry from Ao Thammachat pier (~30–45 min). Combined bus-and-ferry tickets are sold from Ekkamai.
Getting around
- •Shared songthaews along the west-coast road
- •Motorbike rental (฿200–300/day — the hills between beaches are steep, ride carefully)
- •Taxis and hotel transfers from the ferry pier
- •Longtail and speedboat trips from Bang Bao pier for island hopping
Where to stay near The River Retreat Koh Mak
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Tips for Visiting Islands
Book Ferries on 12Go.Asia
The 12Go platform lets you compare ferry operators, times, and prices between islands. Book a day or two ahead in high season. Avoid the cheapest operators if reviews mention safety concerns.
Check Island Closures
Similan Islands, Surin Islands, and Koh Tachai close mid-May to mid-October. Some smaller islands reduce ferry service in monsoon season. Always verify schedules before planning your route.
Snorkel Gear Is Cheap to Buy
Rental gear is often scratched and ill-fitting. Buy a decent mask and snorkel at a Big C for 300–500 THB — cheaper than two days of rentals and much more hygienic.
Nearby Places

Koh Mak Minimart
A convenient island minimart on Koh Mak, stocking everyday essentials for visitors and locals alike.

Ko Mak
A quiet Thai island escape with clear waters, long beaches, and a laid-back atmosphere near Koh Chang.

Ko Kham
A secluded boat-access island near Ko Mak with quiet beaches and an entrance fee.
Similar Islands Across Thailand

Mu Ko Similan National Park
A remote national park archipelago off Phuket's coast, famed for turquoise waters, white sand, and world-class diving.

Koh Lipe
Koh Lipe, in Thailand's far southern Andaman near the Malaysian border, is the country's closest answer to the Maldives — powder-white sand at Sunrise and Pattaya beaches and water in improbable shades of turquoise, with snorkeling straight off the shore into the protected Ko Tarutao Natio.

Koh Samet
A compact island near Rayong offering white sand beaches, clear waters, and coral reefs within easy reach of Bangkok.

Koh Phangan
A laid-back Thai island of white-sand beaches, jungle interior, and the legendary monthly Full Moon Party.
Where to stay near The River Retreat Koh Mak
Find hotels in Koh Chang on the booking sites travellers trust most.
- Compare prices across sites
- Filter for free cancellation
- Secure checkout on the partner site
Compare rates on Booking.com
Largest selection
Compare rates on Agoda
Asia-focused selection
Compare rates on Hotels.com
Member prices
We may earn a commission from bookings made through these links — at no extra cost to you. Learn more.
Location Info
Visitor Information
Best time to visit
November – March
Avoid: June – September (rough seas, many closures)
Rainy season
May – October
Avg. temperature
24°C – 32°C(75°F – 90°F)
Crowds
Peak: December – January
Getting there
No airport on the island. From Bangkok, take a bus or minivan to Trat (5–6 hrs) or fly Bangkok Airways to Trat (TDX, ~1 hr), then the car ferry from Ao Thammachat pier (~30–45 min). Combined bus-and-ferry tickets are sold from Ekkamai.
Getting around
- •Shared songthaews along the west-coast road
- •Motorbike rental (฿200–300/day — the hills between beaches are steep, ride carefully)
- •Taxis and hotel transfers from the ferry pier
- •Longtail and speedboat trips from Bang Bao pier for island hopping