Ko Sam Phee Nong (เกาะสามพี่น้อง) - Koh Rong Archipelago
Ko Sam Phee Nong, or Three Brothers Island, is a reliable starter site in the Koh Rong Archipelago, especially if you're new to the area. It’s a shallow dive, topping out at 13 meters, which makes it perfect for knocking off some rust or getting comfortable in the water. We usually find plenty of small reef fish flitting amongst the patches of hard coral, and sometimes a grumpy stonefish blended into the rocks if you look close enough. It’s not going to blow your mind with pelagics, but for an easy, pleasant dive with decent visibility on a calm day, it’s a good shout.
- Location
- Koh Rong Archipelago, Cambodia, Southeast Asia
- Coordinates
- 11.804200, 102.376500
- Maximum Depth
- 13m
- Difficulty
- Beginner
Best Time to Dive in Koh Rong Archipelago
The warmest water temperatures in Koh Rong Archipelago occur in January, averaging 29.1°C. The coolest conditions are in December at 29.1°C.
Monthly Water Temperatures
- January: 29.1°C (air: 27.0°C)
- February: 29.1°C (air: 27.3°C)
- March: 29.1°C (air: 27.9°C)
- April: 29.1°C (air: 28.8°C)
- May: 29.1°C (air: 29.0°C)
- June: 29.1°C (air: 28.4°C)
- July: 29.1°C (air: 27.8°C)
- August: 29.1°C (air: 27.8°C)
- September: 29.1°C (air: 27.4°C)
- October: 29.1°C (air: 27.4°C)
- November: 29.1°C (air: 28.0°C)
- December: 29.1°C (air: 27.6°C)
Nearby Dive Sites in Koh Rong Archipelago
- Back Door - 12m
- Banana bay - 16m (reef)
- Barracuda point - 12m
- Coral Garden - 13m (reef)
- Corner bar - 13m
- Corral - 10m (reef)
- Crabby - 8m
- Dry Rock North Phu Quoc - 12m
- Hin ao yai - 10m
- Hin Gra Dueng Pinnacle (หินกระเดื่อง) - 16m (pinnacle)
- Hon Bang - 9m
- HTMS Chang Wreck - 24m (wreck)
- HTMS CHONBURI - 12m (wreck)
- HTMS SONGKHLA - 12m (wreck)
- Koh Kon - 5-18m (reef)
Nearest Dive Centres to Ko Sam Phee Nong (เกาะสามพี่น้อง)
- BB Divers - PADI
- BBDivers - PADI
- Bubbles Up! Dive Center
- Koh Mak Divers
- Koh Rong Dive Center - ["PADI"]
- MCC
Marine Life in Koh Rong Archipelago
Home to 24 recorded species including 18 reef fish, 3 seagrass & algae, 2 other, 1 crabs & lobsters.
Notable Species
- Oriental sole (Brachirus orientalis) - Reef Fish
- Big-eye trevally (Caranx sexfasciatus) - Reef Fish
- Common Ponyfish (Leiognathus equula) - Reef Fish
- Six-banded Rock Cod (Epinephelus sexfasciatus) - Reef Fish
- seagrass (Halophila ovalis) - Seagrass & Algae
- Green Rrough-backed Puffer (Lagocephalus lunaris) - Reef Fish
- Deep Flounder (Pseudorhombus elevatus) - Reef Fish
- Narrow-barred Spanish mackerel (Scomberomorus commerson) - Reef Fish
- halodule (Halodule uninervis) - Seagrass & Algae
- Crazy Fish (Butis butis) - Reef Fish
- Redcoat (Sargocentron rubrum) - Reef Fish
- Lattice monocle bream (Scolopsis taenioptera) - Reef Fish
- Crescent Grunter (Terapon jarbua) - Reef Fish
- Striated Locust Lobster (Eduarctus martensii) - Crabs & Lobsters
- Deep Body Silver Biddy (Gerres erythrourus) - Reef Fish
- Wrasse (Thalassoma lunare) - Reef Fish
- Banded archerfish (Toxotes jaculatrix) - Reef Fish
- Savigny's Brittle Star (Ophiactis savignyi)
- Silver moony (Monodactylus argenteus) - Reef Fish
- Remora (Echeneis naucrates) - Reef Fish
Recommended Packing List for Ko Sam Phee Nong (เกาะสามพี่น้อง)
Based on average water temperature of 29.1°C.
- Shorty or Rashguard - warm 29°C water needs minimal exposure protection
- Mask - essential for every dive
- Fins
- BCD - buoyancy compensator
- Regulator - your most safety-critical piece of gear
- Dive Computer - tracks depth, time, and NDL
- Surface Marker Buoy (SMB) - essential for boat pickups
- Dive Torch - useful for crevices and colour at depth
- Underwater Camera - capture your diving memories