Best Cambodia Islands: Koh Rong, Koh Rong Sanloem & Hidden Gems

Cambodia’s southern coastline hides a collection of idyllic islands that rival the world’s top beach destinations. With powdery sands, turquoise lagoons, and lush jungles, these spots offer everything from high-energy parties to tranquil nature retreats. Whether you’re a backpacker chasing sunsets or a diver seeking underwater wonders, this guide uncovers the best ways to experience them.

Why Cambodia’s Islands Captivate Travelers

Far from the mainland’s bustling temples and markets, Cambodia’s islands provide a raw, unspoiled paradise. Koh Rong and its neighbors boast over 40 kilometers of coastline in some areas, featuring blinding white sands and waters teeming with colorful fish. These destinations have surged in popularity for their mix of adventure and relaxation, drawing backpackers, divers, and eco-tourists alike.

Unlike overcrowded Southeast Asian hotspots, many islands retain a rustic charm with limited infrastructure, ensuring authentic experiences. Sunrises paint the horizons in gold, while nights glow with bioluminescent plankton—nature’s own light show.

Getting to Cambodia’s Island Paradise

Sihanoukville serves as the primary gateway, a coastal hub with frequent ferry services. Fast boats depart multiple times daily from 8am to 4pm during peak season (November to April), whisking passengers to major islands in 30-45 minutes for around US$25 round-trip.

• Main hubs: Sihanoukville’s ferry terminal connects to Koh Rong, Koh Rong Sanloem, and others.
• High season tips: Book tickets in advance; services run reliably but can fill up.
• Low season (May-October): Ferries operate but expect rougher seas and fewer options.
• Alternatives: Speedboats or private charters for remote spots like Koh Ta Kiev.

From Phnom Penh, buses to Sihanoukville take 4-6 hours, making a seamless day trip possible.

Koh Rong: The Vibrant Heart of the Islands

As the largest and most developed island, Koh Rong spans 78 square kilometers with endless beaches and a lively atmosphere. Its main village buzzes with bars, eateries, and hostels catering to party enthusiasts and adventurers.

Key attractions include:

• Long Beach: A 7km stretch perfect for sunset strolls and swings over the water.
• Snorkeling and diving: Explore reefs and shipwrecks teeming with marine life.
• Nightlife: Beach parties with fire shows and glowing plankton swims.

Accommodations range from budget hammocks to mid-range bungalows, with prices starting at US$5/night. Food stalls serve fresh seafood and Khmer curries amid the tropical vibe.

Koh Rong Sanloem: Serenity Meets Adventure

Koh Rong’s smaller sibling offers similar beauty with fewer crowds. Saracen Bay on the east side features upscale resorts and pristine sands, while the west provides rustic bungalows and untouched coves.

Activities abound: kayak through mangroves, hike jungle trails, or join cliff-jumping sessions. Diving here is budget-friendly, ideal for beginners spotting turtles and rays.

Hidden Treasures: Koh Ta Kiev and Beyond

For off-grid vibes, head to Koh Ta Kiev, a candle-lit haven with treehouses and eco-lodges like Kactus. Days blend fishing, yoga, and art workshops using ocean plastics; nights feature bonfires and jam sessions.

Other gems include:

• Koh Thmei: Dreamy yellow-sand beaches (Long, Coral, Naked) with hammock stays under US$3/night and top-notch seafood.
• Koh Sdach: Emerging with fishing villages and calm bays for a low-key revival.
• Koh Tang area: Advanced diving at Condor Reef and Vietnam War-era wrecks via guided tours.
• Day trips: Koh Pos (snorkeling village) and Koh Svay (mango orchards with views).

Top Activities Across the Islands

Dive into adventure with these must-dos:

1. Snorkeling & Diving: Shallow reefs and wrecks; Koh Rong Samloem is beginner heaven.
2. Island Hopping: Kayak or boat to nearby specks like Snake and Mango Islands.
3. Hiking & Biking: Jungle paths reveal waterfalls and viewpoints on Koh Rong.
4. Beach Exploration: Hunt secluded spots, climb rocks, or swing into the sea.
5. Nighttime Magic: Bioluminescent plankton tours light up swims.

Where to Stay: From Budget to Bliss

Options suit every wallet:

• Budget (US$5-15): Hammocks, dorms, basic huts on Koh Thmei or Koh Ta Kiev.
• Mid-range (US$20-50): Beach bungalows with fans and sea views on Koh Rong Sanloem.
• Luxury (US$50+): Eco-resorts with pools on Saracen Bay.

Book via hostels for flexibility; many include free activities.

Eating Like a Local: Island Flavors

Fresh catches dominate menus: grilled fish, squid salads, and coconut curries. Koh Thmei’s Coral Beach stands out for exceptional Khmer dishes. Street stalls offer cheap eats (US$2-5), while bars sling cocktails amid bonfires.

Best Time to Visit and Practical Tips

Dry season (Nov-Apr) brings calm seas and sunshine; wet months (May-Oct) mean discounts but storms. Pack reef-safe sunscreen, insect repellent, and cash—ATMs are scarce.

• Health: Vaccinations recommended; drink bottled water.
• Safety: Stick to marked paths; watch for strong currents.
• Sustainability: Avoid single-use plastics; support eco-lodges.

FAQs: Quick Answers for Island Hoppers

Q: How long is the ferry from Sihanoukville?
A: 30-45 minutes to main islands.

Q: Is Koh Rong safe for solo travelers?
A: Yes, vibrant community and hostels make it welcoming.

Q: Can I see bioluminescent plankton year-round?
A: Best in dry season; join guided night swims.

Q: What’s the cheapest way to island-hop?
A: Open-return ferries and shared boats.

Q: Are there ATMs on the islands?
A: Limited to main beaches; bring USD cash.

Sustainable Travel: Preserving the Paradise

These islands thrive on responsible tourism. Choose operators minimizing plastic waste, join beach cleanups, and respect marine life by not touching corals. Eco-retreats like those on Koh Ta Kiev lead with solar power and recycled art, setting a model for visitors.

By supporting local fishers and avoiding overdeveloped spots, travelers help maintain the pristine allure that defines Cambodia’s islands.