Cambodia Island Experiences

Cambodia's Gulf of Thailand

Two islands, two moods

01

Thailand, 25 years ago

Pristine beaches, warm clear water and jungle hills — beautiful and still accessible before mass tourism, at prices well below Phuket or Bali.
02

Lively or peaceful — your call

Social Koh Rong for groups and beach bars; quiet Koh Rong Samloem for honeymooners and anyone who wants to do absolutely nothing.
03

A sea that glows in the dark

Swim through bioluminescent plankton on a new-moon night and watch every movement trail sparkling blue light — Asia's best, alongside the Maldives.

Tropical paradise beach with palm trees and turquoise water

7 km Long Set Beach,
powder-white sand

Koh Rong archipelago

The headline experiences

Koh Rong, its sister & the glow

The three island experiences travellers remember most.

01 — Most famous

Koh Rong

Cambodia's largest, most-visited island, 45 minutes by speedboat from Sihanoukville. Lively Koh Tuch Village has the beach bars and tour agencies; beyond it lie 7 km of world-class powder at Long Set Beach, the fishing-village calm of Sok San, and the near-empty Lonely Beach. Beach time and water sports in equal measure.

45–50Min ferry

28°CWater

No ATMsBring cash

02 — The peaceful sister

Koh Rong Samloem

Just 20 minutes from Koh Rong, but smaller, quieter and — by most travellers' verdict — more beautiful. Saracen Bay is a magazine-cover crescent of soft sand and calm water; Lazy Beach is the island's most romantic hideaway; Sunset Beach has the fewest crowds; M'Pai Bay keeps a genuine fishing-village feel. Around it, 405 km² of protected marine waters.

20 minFrom Koh Rong

405 km²Protected

CalmSwim-ideal bay

Star-filled night sky over a dark tropical sea

03 — Most unique

Bioluminescent Plankton

The single most extraordinary thing you can do here. Microscopic dinoflagellates light up blue-green when the water moves, turning a night swim into something out of science fiction. Guided new-moon tours take small groups by boat to the darkest, most active zones — universally described as a once-in-a-lifetime experience.

Blue-greenNatural glow

Top 3In Asia

After darkBest time

On and off the water

Ways to fill an island day

Snorkel the reefs

Clownfish, parrotfish, turtles and octopus on half-day boat trips.

Scuba dive

PADI courses and fun dives with 15–25 m visibility in dry season.

Glow plankton

Night-swim through bioluminescent water on a new-moon tour.

Island-hop

Charter a boat to remote beaches and uninhabited islands.

Jungle trek

Cross Koh Rong east-to-west to hidden waterfalls and carvings.

Squid fishing

Head out after dark, fish under the lights and cook on board.

Dive deeper

Reefs, archipelago, jungle & the catch

Koh Rong archipelago reefs

Snorkeling & Diving

Clownfish, turtles, octopus and moray eels on half-day snorkel trips ($20–35), plus PADI dive centres for Open Water courses and fun dives.

Ta Kiev · Sdach · Russey

Island Hopping

Charter the full archipelago ($100–300/day) or hop the $5–8 inter-island ferry — reaching rustic Koh Ta Kiev, remote Koh Sdach and quiet Koh Russey.

Koh Rong interior

Jungle Trekking & Waterfalls

Trek the 316 m jungle hills east-to-west to hidden waterfalls, caves and Indiana-Jones stone carvings — or a short Saracen Bay waterfall walk.

Sunrise · squid · deep-sea

Fishing Experiences

Set nets at sunrise with local fishers and cook the catch beachside, chase squid under night lights, or charter for barracuda and tuna.

When to go

The island year at a glance

Clear skies and calm seas run November to April; the rains bring half-price stays but the ocean still swims at 25°C+.

JanPeak

FebPeak

MarHigh

AprHigh

MayShoulder

JunRain

JulRain

AugRain

SepRain

OctShoulder

NovHigh

DecPeak

Peak — Dec to FebBusiest; book stays and ferries early.

High — Nov to AprClear skies, calm seas, best visibility.

Shoulder — May & OctGood conditions, fewer crowds, some rain.

Rainy — Jun to SepHeavy rain possible, half-price stays.

What it costs

Island activities, by price

Per person, roughly — Cambodia's islands deliver Maldives-grade water at Southeast Asian prices.

Inter-island ferry $5–8 20-minute Koh Rong ⇄ Samloem crossing, multiple daily.

Plankton tour $15–25 Guided new-moon bioluminescence night trip by boat.

Snorkel trip $20–35 Half-day, multiple reef sites, gear and guide included.

Fun dive $40–60 Per dive for certified divers; courses from $250.

Private charter $100–300 Full-day boat to remote, uninhabited islands.

★

Song Saa Private Island offers overwater villas comparable to the Maldives — with the cultural richness of Cambodia and lower prices.

The islands, by the numbers

Paradise, measured

7 km Long Set Beach Powder-white sand along Koh Rong's western shore.

28°C Water temp Warm, swimmable sea all year round.

405 km² Protected Marine area around Samloem keeps reefs healthy.

15–25 m Dive clarity Water visibility in the dry season, Nov–May.

The Maldives at Southeast Asian prices

Song Saa Private Island

Cambodia's flagship ultra-luxury resort spans two private islands in the Koh Rong archipelago — overwater and jungle villas, a world-class spa, a coral-restoration marine sanctuary and whale-shark monitoring. Wake ten metres from warm, clear water, with no roads and no alarm clock.

Enquire About Luxury Stays

Choose your island

Cambodia's islands at a glance

Island	Best for	Vibe	From Sihanoukville
Koh Rong	Groups, beach + nightlife	Lively, social	45–50 min ferry
Koh Rong Samloem	Couples, families, solitude	Peaceful, romantic	40–45 min ferry
Koh Ta Kiev	Budget, rustic island life	Back-to-basics	Private boat
Koh Sdach	Off-the-beaten-path, fishing	Authentic, remote	Private boat
Song Saa Private Island	Ultra-luxury, eco-conscious	Exclusive	Private transfer
Koh Russey	Day trip, snorkeling	Quiet, undeveloped	30 min day boat

Questions, answered

Cambodia islands FAQ

When is the best time to visit Cambodia's islands?

November to April is the high season — clear skies, calm seas and the best snorkeling and diving visibility. December to February is the busiest peak, so book early. June to September is rainy with possible ferry delays, but stays are roughly half-price and the sea still swims at 25°C+.

Where and when can I see bioluminescent plankton?

The waters around Koh Rong and Koh Rong Samloem glow blue-green when disturbed at night. It is best on new-moon nights when the sky is darkest; guided boat tours run from both islands for around $15–25 per person and take you to the clearest, most active zones away from shoreline light.

Koh Rong or Koh Rong Samloem — which should I choose?

Choose Koh Rong for lively beach bars, nightlife and an active social scene, ideal for groups and younger couples. Choose Koh Rong Samloem for peace, romance and unspoiled beaches like Saracen and Lazy — better for honeymooners, families and anyone wanting to genuinely unwind.

How much do island activities cost?

Inter-island ferries are $5–8, bioluminescence tours $15–25, half-day snorkel trips $20–35, certified fun dives $40–60 (Open Water courses from $250), and private island-hopping charters $100–300 per day. Beachfront eco-bungalows run roughly $80–250 a night.

Are there ATMs on Koh Rong?

No — there are no ATMs on Koh Rong, so bring enough cash for your stay. It also helps to use reef-friendly sunscreen to protect the surrounding coral, and to book ferry tickets in advance during the November–April high season.

Find your island

Tell us whether you want beach bars or total solitude, a glowing night swim or an overwater villa — and our local specialists will build the perfect Cambodia island escape around it.

Plan My Island Escape Back to Experiences