Koh Rong Island

As Cambodia’s second-largest island, Koh Rong has rapidly evolved from a hidden backpacker secret into one of Southeast Asia’s premier tropical destinations. Located about 25 kilometers off the coast of Sihanouk Ville in the Gulf of Thailand, it beautifully balances a laid-back island vibe with spectacular natural geography.

Here is a comprehensive breakdown of what makes Koh Rong Island so remarkable.

The Standout Beaches

Koh Rong boasts over 60 kilometers of coastline with more than 23 individual beaches, ranging from lively social hubs to completely untouched stretches of paradise.

• Long Beach (Sok San Beach): This is arguably the island’s crown jewel, stretching for miles with dazzling, powdery white sand that literally squeaks underfoot. In 2026, it earned international acclaim by being ranked among the Top 10 beaches in the world by The World’s 50 Best Beaches. It is ideal for quiet sunbathing and spectacular sunsets.
• Koh Touch: Located in the southeast, this is the island’s main port and original hub. If you are looking for a vibrant atmosphere, beachside bars, local eateries, and a lively social scene, this is where the action centers.
• Long Set Beach (4K Beach): Nestled close to Koh Touch but offering a much calmer, serene environment, it features incredibly soft sand, crystal-clear turquoise waters, and exceptional boutique beachfront resorts.
• Lonely Beach: Tucked away on the northern tip of the island, this remote gem is perfect for travelers looking to completely disconnect and experience ultimate tranquility surrounded by raw nature.

Top Activities & Experiences

Swimming with Bioluminescent Plankton

One of Koh Rong’s most magical nighttime phenomena is the abundance of bioluminescent plankton. In areas with minimal light pollution, taking a night swim or a dedicated boat tour reveals an underwater world that glitters and sparks electric blue with your every movement.

 Snorkeling and Scuba Diving

The calm, warm waters surrounding the island offer excellent visibility and are teeming with diverse marine life, sea turtles, and vibrant coral reefs. It remains one of the most affordable and rewarding places in the region to take a discovery dive or complete a PADI certification.

 Jungle Trekking & Waterfalls

Beyond the sand, the island’s interior is dominated by lush, hilly rainforest and a 316-meter mountain peak in the northwest. Well-trodden jungle trails connect various sides of the island, offering hikers the chance to spot tropical birds, wild orchids, and seasonal waterfalls hidden in the canopy.

 Essential Travel Tips

• Best Time to Visit: The dry season runs from November to May, offering cloudless hot days and perfectly calm seas. The green season (June to October) brings refreshing afternoon downpours and fewer crowds, though boat transfers can occasionally face rougher waters.
• Getting There: Modern speed ferries depart regularly from the main piers in Sihanouk Ville, taking roughly 45 minutes to reach the main docks on Koh Rong.
• Development & Infrastructure: While the island has upgraded significantly with concrete roads and stable grid electricity in recent years, it still retains its natural charm. It is always wise to keep plenty of cash on hand, as ATM access can still be limited depending on which beach you base yourself out of.