Skip to main content
logo mobile sidebar
support-image-mobile
Share your ideas with our local expert team - we’re here to listen and help you shape a meaningful journey through Indochina.
(+84) 868 663 993
Asia Leading Tour Operator 2025
tripadvisor travelers choice awards 2024
Travelers' Choice Awards 2025

Koh Thmei: Top Activities For Nature Lovers And Bird Watchers

Koh Thmei refers to Koh Thmei, which is a peaceful island located in the south of Cambodia, within Ream National Park. The island is known for its pristine beaches, mangroves, and environmentally friendly resorts, making it a perfect hideaway for tourists who wish to escape the hustle and bustle of other tourist destinations.

Introduction To Koh Thmei

The Koh Thmei refers to a peaceful island that is part of Cambodia, located inside the Ream National Park, near Sihanoukville. The island has slowly become one of the emerging destinations for tourists because of the unspoiled beach, the calm turquoise water, and the biodiversity of the island. The island has a peaceful environment that differentiates it from other islands in Cambodia, which may be too crowded.
Koh Thmei Island
Visitors should consider traveling to Koh Thmei because of the eco-friendly facilities available, the peaceful environment, and the island’s natural beauty. The island is suitable for couples, nature lovers, and those looking to escape the crowds of tourists to explore the beauty of the island in southern Cambodia.

History Of Koh Thmei

Koh Thmei, referring to Koh Thmei Island in the South of Cambodia, has a peaceful and simple history influenced by nature and small fishing communities. The island is located in Ream National Park and has been traditionally used by local fishermen from nearby villages in southern Cambodia. Unlike other Cambodian Islands, Koh Thmei Island has remained undeveloped for decades, and this has contributed to the preservation of its ecosystem and peaceful environment.
In the past, a few people inhabited the island, and their main activities were fishing and agriculture. Today, Koh Thmei Island is famous for its “eco-tourism” and not for its development, and this is a clear indicator that the island has always been respectful to its ecosystem, making it a symbol of responsible tourism in Cambodia.

Top 3 Iconic Attractions In Koh Thmei

Koh Thmei is a paradise for travelers who wish to explore untainted nature and peaceful island experiences, especially in southern Cambodia. This new tourist spot offers various famous tourist attractions for travelers to explore.

Koh Thmei Beach

The most popular feature of Koh Rong Samloem is Koh Thmei Beach. This beach is popular for its long stretch of white sand and blue waters. Unlike other popular beach locations in and around Sihanoukville, this beach is peaceful and untouched. Visitors can enjoy a range of activities on the beach, including swimming, sunbathing, and relaxing in the shade of palm trees while listening to the sweet music of the waves. The peaceful environment of this beach makes it suitable for couples and single travelers. Watching the sun setting in the Gulf of Thailand is a wonderful experience.
Koh Thmei Beach

Mangrove Forests in Ream National Park

The mangrove forests in the Ream National Park, where Koh Thmei is located, are of significant importance to the country of Cambodia. These forests have many species of birds, small animals, and marine life. Tourists can explore the mangrove forests by kayak, which gives them an insight into the ecological activities that take place in the country. The calm waters of the forest, along with the variety of flora and fauna, make it the ideal location for eco-tourism. Visiting the location gives tourists a glimpse of the natural beauty of Cambodia, which is also beneficial to the concept of eco-tourism in the country.
Mangrove Forests in Ream National Park

Koh Thmei Eco-Resort Area

The eco-resort area on Koh Thmei demonstrates the island’s dedication to responsible and environmentally friendly tourism. The accommodations in this area consist of wooden cottages, which complement the tropical environment of the island. The lack of electricity and commercialization allows visitors to completely disconnect from their busy lives. This experience allows visitors to have a chance to eat fresh seafood, wake up to the ocean, and sleep under the stars. This practice further contributes to Koh Thmei’s reputation for a peaceful and environmentally friendly island in southern Cambodia.
Koh Thmei Eco-Resort Area

3 Unforgettable Experiences You Shouldn’t Miss

Koh Thmei is not just a beautiful destination; it is a meaningful experience where travelers can connect with nature and culture. Whether it is fresh seafood or an eco-adventure experience, everything in Koh Thmei is a reflection of a peaceful and sustainable lifestyle.

Enjoy Fresh Local Seafood

One of the highlights of visiting Koh Thmei is the chance to enjoy fresh seafood, caught from the sea just a day before, and cooked in a simple, genuine way, just like in Cambodia. The seafood includes fish, squid, and crab, and it’s often served in one of the beautiful eco-resorts, which offer a wonderful view of the sea. Enjoying the seafood of the region will not only make you happy, but it will also support the small community in southern Cambodia.
Enjoy Fresh Local Seafood

Go Kayaking Through Mangrove Forests

Kayaking through the mangrove forests of Koh Thmei is one of the activities to be undertaken when visiting this island. The mangrove forests of Koh Thmei are located in the Ream National Park, and this experience of kayaking will provide a chance to see birds, small animals, and the untouched natural beauty of the island. This slow-paced experience of kayaking will provide a complete experience of the beauty of Koh Thmei, which is known for its peace and tranquility.

Disconnect And Embrace Island Life

Koh Thmei is known for its “off the grid” lifestyle, and digital detox is probably the most rewarding activity that you can do in this island paradise. With limited electricity and Internet access, you can totally unwind and immerse yourself in nature. You can spend your days reading on the beach, watching the sunset, or simply listening to the sounds of the waves crashing on the shore. The island living in Koh Thmei is a great opportunity to totally unwind and appreciate the simple things in life.
Disconnect And Embrace Island Life

Entrance Fee

Visiting Koh Thmei is affordable since there is no entrance fee for the island. The prices below are clear and updated for the year 2026. This price guide will greatly assist international tourists in planning their expenses.
Service / Activity
Price (USD)
Details
Ream National Park entry
Free
No official entrance fee for general access
Boat Transfer to Koh Thmei (round trip)
25 to 35 per person
Price depends on the operator and group size
Private Boat Charter
60 to 120
Suitable for small groups
Guided Mangrove Tour
15 to 25 per person
Includes a local guide
Kayak Rental
5 per hour
Self-exploration in mangrove areas
Eco-Resort Stay
40 to 90 per night
Depends on bungalow type and season
These prices are approximate and apply to 2026. Additionally, they can vary depending on the season and weather conditions. Some children under six years may travel for free on a boat transfer, though this varies depending on the operator.

Opening Hours

Koh Thmei, situated inside Ream National Park in Cambodia, does not have “opening hours” like other islands since it is a natural destination. However, it can be accessed daily between 7:30 AM and 5:30 PM, which corresponds with the time schedules for boat transfer and park operation. The major boat operations to and from the mainland operate between 8:00 AM and 2:00 PM, with the last boats departing before 5:00 PM. Those spending the night in one of the available eco-resorts can visit the island anytime.
The best time to visit Koh Thmei is during the dry season between November and April, when the weather is favorable with clear sunshine and calm seas. The peak season to visit the island falls between December and February, when it is cooler with clear skies, making it suitable for activities like kayaking and swimming.

How To Get To Koh Thmei

The key to reaching Koh Thmei is to plan your trip in advance. The island is located within Ream National Park in southern Cambodia and is easily reached by road and boat transfer from Sihanoukville.
Transport Option
Route
Duration
Price (USD)
Notes
Taxi (Private Car)
Sihanoukville to Ream Pier
30 to 40 minutes
20 to 30
Comfortable and convenient for families
Tuk Tuk
Sihanoukville to Ream Pier
45 to 60 minutes
12 to 18
Budget option, negotiate the price before departure
Motorbike Rental
Sihanoukville to Ream Pier
40 to 50 minutes
8 to 12 per day
An international driving permit is recommended
Shared Boat Transfer
Ream Pier to Koh Thmei
45 to 60 minutes
25 to 35 per person
A round-trip usually includes
Private Boat
Ream Pier to Koh Thmei
45 minutes
60 to 120
Ideal for groups
Travel Notes: Before traveling to the location, it is essential to travel to Ream Pier first. After that, the next mode of transport is the boat. However, it is worth noting that the rainy season, from May to October, can influence the departure of boats. In case one decides to use the motorbike, it is recommended that an international driving permit be acquired.

Things To Know Before Traveling To Koh Thmei

Before reaching Koh Thmei, one should be aware of its “eco-friendly” environment and lack of infrastructure. This will help you have a smooth, responsible, and enjoyable experience on this beautiful island in this peaceful part of Cambodia.
peaceful Koh Thmei Beach
  • Electricity is only available for a few hours in the evenings, so it is a good idea to charge all electrical devices in advance to avoid any inconvenience during your visit.
  • Since there are no ATMs or card payment systems on the island, it is recommended that you carry sufficient cash for all your needs.
  • Mobile network signals are weak and inconsistent, depending on your network provider, so Koh Thmei is a great place for digital detox, though it is not suitable for internet enthusiasts.
  • Since it is a protected area, it is important that you respect all wildlife, do not litter, and contribute to the preservation of mangroves and marine ecosystems.
  • Essential items such as sunscreens, insect repellent, personal hygiene essentials, and any medication that you may need should be carried, as there are no facilities available on the island and the basic amenities are scarce.

FAQs About Koh Thmei

If you are planning a trip to Koh Thmei, you may have questions about how to plan and stay safe on your trip. Some of the questions that people ask about traveling to this island include:
  1. Is Koh Thmei good for family travel?
Koh Thmei is good for family travel, especially for families who enjoy nature. The island offers safe beaches with calm waters, eco-resorts, and nature activities such as kayaking. However, it is not good for families who prefer luxurious accommodations or entertainment centers.
  1. Do I need to book my accommodations in advance?
Yes, it is highly recommended that one book accommodations in advance, especially during the dry season from November to April. The island has limited eco-resorts and accommodations, so it is not guaranteed that one can find accommodations on the spot. In addition, booking accommodations in advance can assist one in arranging the transfer from the mainland since most of the resorts have direct arrangements with the clients.
  1. Is Koh Thmei safe for solo travel?
Koh Thmei is considered very safe for solo travel. The island has a small population with low crime rates. Most people who travel to the island engage in eco-tourism activities. However, it is recommended that one inform the resort of their travel plans. In addition, one should keep an eye on the weather when traveling on a boat.

Final Thoughts: Is Koh Thmei Worth Visiting?

Koh Thmei is a must-visit place for tourists looking for untouched beach destinations, a peaceful environment, and authentic eco-tourism in Southern Cambodia. The peaceful beach, biodiversity, and simple island life of Koh Thmei present a rare opportunity to unplug from the world and plug into nature. If you’re looking for a secret island getaway in the tropics far from the tourist crowds, Koh Thmei is the perfect choice for you. Plan your trip today and explore Cambodia with Seni World!
Content Seniworld
0 0 votes
Article Rating
Subscribe
Notify of
guest
0 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
0
Would love your thoughts, please comment.x
()
x