Long Beach's white sand and turquoise water on Koh Rong island, Preah Sihanouk, Cambodia
island

Koh Rong

Cambodia's Backpacker Paradise Island

Photo: TomFitzhenry, CC BY-SA 4.0

Koh Rong — Quick Facts

What is it?
island — Cambodia's Backpacker Paradise Island
Where?
Preah Sihanouk , Cambodia
Entry Fee
Free (ferry $8–15 USD each way)
Opening Hours
Open 24 hours
Time Needed
1–3 days (overnight recommended)
Best Time
July–October for bioluminescent plankton; November–April for calm seas
Don't Miss
Wading into Long Beach after dark to see bioluminescent plankton light up electric blue

What to See on Koh Rong

Long Beach

Seven kilometres of uninterrupted white sand on the island’s west coast, backed by jungle and almost entirely undeveloped beyond a handful of bungalow resorts. In 2026, Long Beach was ranked among the world’s top 10 beaches by The World’s 50 Best Beaches — and it still empties out within a 10-minute walk of any pier.

Koh Touch Village

The island’s only real town, on the southeast coast — a tangle of guesthouses, beach bars, dive shops, and restaurants strung along the sand. This is where the ferries dock and where most visitors base themselves.

Sok San Beach

A long, quieter stretch on the island’s northwest side, reachable by a bumpy road or boat from Koh Touch. Fewer crowds, fewer bars, more space to spread out.

Bioluminescent Plankton

Cambodia’s most photographed natural phenomenon: wade into the shallows after dark and disturbed plankton glow electric blue around your feet. Visible most nights but most spectacular from July to October when blooms peak.

How to Get to Koh Rong

Speedboats and slow boats depart Sihanoukville’s pier (near Serendipity/Ochheuteal) roughly every two hours from 8am to 5pm. Speedboats take 30–45 minutes ($8–15 one-way); slow boats take around 1.5 hours and cost slightly less. Book at the pier or through any guesthouse — no need to book far ahead outside peak season (December–January).

Practical Tips

  • Bring cash — ATMs on the island are scarce and charge high fees
  • Electricity is generator-powered in most areas and may cut off late at night
  • Pack a dry bag for the boat crossing — speedboats can get splashy
  • Reef-safe sunscreen is increasingly required by tour operators protecting the surrounding reefs

Nearby Attractions

  • Koh Rong Samloem — the quieter sister island, 45 minutes further by boat
  • Koh Ta Kiev — an off-grid island accessible from the Sihanoukville mainland
  • Otres Beach — the mainland’s best beach, where most island ferries depart nearby

Practical Info

Entry Fee
Free (ferry $8–15 USD each way)
Opening Hours
Open 24 hours
Time Needed
1–3 days (overnight recommended)
Best Time
July–October for bioluminescent plankton; November–April for calm seas

Getting There

Koh Rong is in Preah Sihanouk, Cambodia.

Transport guide →

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