Koh Rong & Koh Rong Samloem – Cambodia Diving

About Koh Rong & Koh Rong Samloem

Koh Rong and Koh Rong Samloem are Cambodia's premier island diving destinations, offering ten distinct dive sites across both islands with exceptional variety from macro slopes to deep walls. Koh Rong Samloem is the diving highlight, featuring Nudibranch Heaven — Cambodia's premier macro site with countless nudibranch species — alongside Cobia Point for pelagic encounters with barracuda and cobia, and Shark Island for reliable whitetip reef shark sightings. Mellow Point delivers the deepest diving in the region at 18 to 30 metres with giant grouper and occasional eagle rays on a dramatic wall drop-off. Lazy Beach and Sunset Beach provide calm bay diving with seahorses, turtles, and pipefish. Koh Rong complements with Long Set Beach for training, Coral Garden with healthy table coral formations, The Caves with dramatic swim-through caverns, and Koh Toch with sheltered patch reefs. The islands are reached by 2-hour ferry from Sihanoukville and offer a tropical island experience with world-class diving. Water temperatures remain warm at 26 to 31 degrees Celsius with visibility ranging from 5 to 25 metres depending on the site.

Highlights

• ✓Nudibranch Heaven – Cambodia's premier macro site with countless nudibranch species
• ✓Shark Island – reliable whitetip reef shark encounters on rocky islets
• ✓Mellow Point – deep wall drop-off with giant grouper and eagle rays
• ✓The Caves – swim-through caverns with batfish and dramatic light shafts
• ✓Ten distinct dive sites across both islands offering exceptional variety
• ✓Lazy Beach night dives with pipefish, seahorses, and octopus

Getting There

Koh Rong and Koh Rong Samloem are reached by ferry from Sihanoukville, approximately 2 hours crossing. Speed boat services also operate with faster 45-minute transfers. Dive sites around the islands are reached by short boat rides from the island bases. Koh Rong Samloem is the quieter island with better diving infrastructure, while Koh Rong is larger with more accommodation options. Both islands are developing tourism destinations with improving amenities.