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Things to do in Southern Islands

Cambodia’s Southern Islands offer a tranquil escape with powdery white sands, turquoise waters, and a pace of life that feels wonderfully unhurried. Scattered across the Gulf of Thailand, islands like Koh Rong, Koh Rong Sanloem, and Koh Russey boast pristine beaches, vibrant coral reefs, and lush jungle interiors ideal for gentle exploration or pure relaxation.

Whether you’re seeking barefoot luxury in an overwater villa or a peaceful retreat in an eco-conscious hideaway, the Southern Islands provide an idyllic end to a Cambodia holiday. Snorkelling, kayaking, and spa treatments are popular, but so is doing nothing at all—just soaking up the sunshine and listening to the waves.

Well-connected via boat from Sihanoukville or by private transfer, these islands feel a world away yet are easy to reach. They’re perfect for couples, families, or anyone looking to unwind after exploring Cambodia’s cultural heartlands with Asian Geographical.

EXPERIENCES

A range of thrilling experiences handpicked by our experts. Don’t see one that’s just right for you? No problem. Our local insiders will create precisely what you want.

Relax on Pristine Beaches

The Southern Islands are home to some of Southeast Asia’s most beautiful beaches. From the soft, powder-white sands of Koh Rong to the secluded coves of Koh Rong Sanloem, these coastlines are perfect for sunbathing, strolling, or simply soaking in the tropical serenity. With fewer crowds than neighbouring countries, you’ll often find stretches of beach entirely to yourself. Whether you prefer barefoot luxury or rustic charm, the beaches here invite true relaxation in an unspoilt natural setting.

Snorkelling and Diving

The warm waters surrounding Cambodia’s Southern Islands offer excellent snorkelling and diving. Explore coral reefs teeming with colourful fish, sea turtles, and occasional reef sharks. Koh Tang and Koh Prins are popular spots for diving excursions, while the shallow reefs off Koh Rong Sanloem make snorkelling easy for beginners. Several eco-friendly dive centres provide professional guidance. It’s a rewarding way to discover the marine life of the Gulf of Thailand while supporting sustainable underwater tourism.

Island-Hopping by Private Boat

One of the best ways to experience the Southern Islands is by private boat. Charter a day trip or a sunset cruise to explore lesser-known islets, snorkelling spots, or hidden beaches inaccessible by land. Island-hopping allows you to visit local fishing villages, spot dolphins in open waters, or enjoy a gourmet picnic on a deserted beach. It’s a luxurious yet simple pleasure that lets you enjoy the islands at your own pace, far from crowds.

Kayaking through Mangroves

Paddle through the mangrove channels of Koh Kong or Koh Ta Kiev for a peaceful and immersive experience in the island ecosystems. These calm waterways are perfect for kayaking and offer a close-up look at Cambodia’s coastal biodiversity. Spot birdlife, crabs, and small fish as you glide through the shaded trails of trees and roots. Many eco-resorts offer guided mangrove kayaking tours that combine nature discovery with responsible travel, adding a deeper layer to your island stay.

Stay in a Luxury Eco-Resort

The Southern Islands are dotted with eco-conscious luxury resorts that blend sustainability with comfort. Whether on Koh Russey or Song Saa Private Island, you’ll find stylish villas built from natural materials, farm-to-table dining, and spa therapies overlooking the sea. These resorts support local communities and conservation efforts, offering guests a sense of purpose alongside indulgence. A stay here lets you enjoy Cambodia’s natural beauty while helping to preserve it for future travellers.

Watch Bioluminescent Plankton

On moonless nights around Koh Rong and Koh Rong Sanloem, the sea comes alive with glowing plankton. A night swim in these sparkling waters is a magical and unforgettable experience. As you move, tiny plankton emit bursts of light, creating a galaxy of luminescence around you. Some guided night boat trips offer the best spots for safe viewing. It’s a rare natural phenomenon, best seen in calm, dark conditions—and one of Cambodia’s most enchanting coastal moments.

Enjoy a Sunset Beach Barbecue

Many resorts and private boat charters can arrange beach barbecues at sunset—one of the most enjoyable dining experiences on the islands. As the sun dips into the Gulf of Thailand, savour freshly grilled seafood, tropical fruits, and Khmer-inspired dishes under lantern-lit skies. With your feet in the sand and a drink in hand, it’s a romantic or family-friendly treat. This relaxed, al fresco setting embodies the laid-back charm of Cambodia’s island lifestyle.

Trek through Jungle Trails

Beyond the beaches, the Southern Islands offer short jungle treks that reveal hidden waterfalls, coastal cliffs, and diverse wildlife. On Koh Rong, you can hike from one side of the island to the other, passing through thick forest and small villages. Koh Ta Kiev and Koh Sdach also have easy trails through cashew trees and bamboo groves. Guided treks offer insight into local flora and fauna, making it a rewarding way to connect with the islands’ wild interiors.

CAMBODIA CULTURE & COAST EXPEDITION

Journey through Cambodia on a 16-day group expedition exploring Angkor temples, floating villages, rural communities, and coastal landscapes. Enjoy hands-on cultural experiences, eco-retreat stays, and beach relaxation on Koh Rong Island—perfect for curious travellers seeking heritage, local life, and meaningful connection across Cambodia’s most captivating regions.

Interest

Heritage, People & Culture

Destination

Cambodia

Tour Style

GROUP

Duration

16 days

CAMBODIA HERITAGE & ISLAND ESCAPE

Join the 12-day Cambodia Heritage Expedition, a journey through Angkor Wat’s grandeur, Phnom Penh’s rich history, and Koh Rong’s pristine beaches. Explore ancient temples, royal landmarks, and authentic cultural experiences. Discover Cambodia’s hidden treasures—book your adventure today for an unforgettable blend of history, nature, and exploration!

Interest

Heritage, On the Water

Destination

Cambodia

Tour Style

GROUP

Duration

12 days

GRAND INDOCHINA EXPEDITION

The Grand Indochina Expedition is an 18-day journey through Vietnam, Cambodia, and Laos, exploring UNESCO sites, ancient temples, and breathtaking landscapes. From Halong Bay’s jade waters to Angkor’s grandeur and Luang Prabang’s charm, this immersive Indochina tour blends culture, history, and nature. Enquire now and start your adventure!

Interest

Heritage, People & Culture

Destination

Cambodia, Laos, Vietnam

Tour Style

GROUP

Duration

18 days

ULTIMATE CAMBODIA EXPEDITION

Journey across Cambodia on this immersive 21-day group tour exploring ancient temples, floating villages, artisan towns, and tropical islands. From Angkor Wat to Koh Rong, experience rich culture, rural life, and natural beauty—perfect for travellers seeking a deeper, more varied adventure through Cambodia’s heritage, landscapes, and coastal charm.

Interest

People & Culture, On the Water

Destination

Cambodia

Tour Style

GROUP

Duration

21 days

GRAND INDOCHINA EXPEDITION

The Grand Indochina Expedition is an 18-day journey through Vietnam, Cambodia, and Laos, exploring UNESCO sites, ancient temples, and breathtaking landscapes. From Halong Bay’s jade waters to Angkor’s grandeur and Luang Prabang’s charm, this immersive Indochina tour blends culture, history, and nature. Enquire now and start your adventure!

Interest

Heritage, People & Culture

Destination

Cambodia, Laos, Vietnam

Tour Style

GROUP

Duration

18 days

No records found

CAMBODIA CULTURE & COAST EXPEDITION

Journey through Cambodia on a 16-day group expedition exploring Angkor temples, floating villages, rural communities, and coastal landscapes. Enjoy hands-on cultural experiences, eco-retreat stays, and beach relaxation on Koh Rong Island—perfect for curious travellers seeking heritage, local life, and meaningful connection across Cambodia’s most captivating regions.

Interest

Heritage, People & Culture

Destination

Cambodia

Tour Style

GROUP

Duration

16 days

CAMBODIA HERITAGE & ISLAND ESCAPE

Join the 12-day Cambodia Heritage Expedition, a journey through Angkor Wat’s grandeur, Phnom Penh’s rich history, and Koh Rong’s pristine beaches. Explore ancient temples, royal landmarks, and authentic cultural experiences. Discover Cambodia’s hidden treasures—book your adventure today for an unforgettable blend of history, nature, and exploration!

Interest

Heritage, On the Water

Destination

Cambodia

Tour Style

GROUP

Duration

12 days

GRAND INDOCHINA EXPEDITION

The Grand Indochina Expedition is an 18-day journey through Vietnam, Cambodia, and Laos, exploring UNESCO sites, ancient temples, and breathtaking landscapes. From Halong Bay’s jade waters to Angkor’s grandeur and Luang Prabang’s charm, this immersive Indochina tour blends culture, history, and nature. Enquire now and start your adventure!

Interest

Heritage, People & Culture

Destination

Cambodia, Laos, Vietnam

Tour Style

GROUP

Duration

18 days

ULTIMATE CAMBODIA EXPEDITION

Journey across Cambodia on this immersive 21-day group tour exploring ancient temples, floating villages, artisan towns, and tropical islands. From Angkor Wat to Koh Rong, experience rich culture, rural life, and natural beauty—perfect for travellers seeking a deeper, more varied adventure through Cambodia’s heritage, landscapes, and coastal charm.

Interest

People & Culture, On the Water

Destination

Cambodia

Tour Style

GROUP

Duration

21 days

Wellness Retreat

The entire space on Song Saa Private Island, is beautifully constructed using natural materials, a high ceiling with an all-encompassing canopy so as to integrate seamlessly into the natural space. At the centre of its architectural design is its creative art by Melita, Rory Hunter’s lovely wife. Her creativity and personal touch can be felt even in our two bedrooms villa, so beautifully designed. The focus is on relaxing the mind; a sunken bath, full-length windows and a small pool.

Classic

Six Senses Krabey Island is a luxury island resort set on Krabey Island, a short boat ride from Sihanouville on Cambodia’s mainland. Situated just off of Cambodia’s coast, this small 40-acre island, with its highest point being just 42 meters above sea level, offers powder sand beaches with views of the stunning emerald sea. Sympathetic to its tranquil surroundings, Six Senses Krabey Island is a wonderful retreat to help completely unwind after a touring itinerary through Southeast Asia.

Modern

Alila Villas Koh Russey is an ultra-luxury resort, set in the Kog Rong archipelago in the Gulf of Siam, southern Cambodia. Known for its pristine bays, dramatic headlands, powder sand beaches and tropical forests, Koh Russey, or Bamboo Island as it is commonly known is only a 15-minute boat ride from the Cambodian coast and 30 minutes from Sihanoukville’s airport. Famed for its emerald waters, azure sky and amazing views, it offers an attractive alternative to Koh Samui and Phuket.

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What Others Say

Here’s what our customers have to say about their Asian Geographical experience

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A FAMILY FROM PETERSFIELD (WEST SUSSEX)

“I would like to thank Asian Geographical Expeditions staff for organising a perfect holiday for my family to Dubai, Sri Lanka and the Maldives…”

Maldives, Sri Lanka, UAE
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A HONEYMOON COUPLE FROM DERBY

“We are grateful for the exceptional planning and care taken by Asian Geographical Expeditions to ensure our holiday was perfect.”

Maldives, Sri Lanka
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A COUPLE FROM SHEFFIELD – WEDDING ANNIVERSARY

“… organised by Asian Geographical Expeditions following a recommendation from a close friend. He wasn’t wrong! Asian Geographical Expeditions immediately showed us their professionalism, care and attention to our wishes.”

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A COUPLE FROM KENT

“Thank you for suggesting the helicopter ride to Everest Base Camp and breakfast with a view of Mt Everest—a truly spectacular moment.”

Bhutan, Nepal
what other says

A COUPLE FROM ESSEX

“The history and cultural specialists also deserve a mention for the way they illuminated the heritage of the places we visited, as does the Buddhist scholar with his apparently boundless knowledge.”

Bhutan, Nepal, Thailand
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Why travel with us

Tailored Luxury

Your entire holiday is designed around your personal preferences

Travel at your own pace with full itinerary flexibility

Choose from handpicked, luxury hotels & resorts across Asia

Enjoy seamless logistics, private transfers, and 24/7 assistance

Expert Knowledge

Our package holiday team has decades of experience in luxury Asia travel

Receive first-hand advice from specialists who know each destination intimately

Gain access to hidden gems and authentic local experiences

Sustainable Travel

Our aim is to stay committed to responsible travel in Asia

We partner with eco-conscious providers

Itineraries include experiences that preserve Asia’s cultural and natural heritage

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Established in 2014

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