Scuba Diving at Koh Rong Corner

Diving atKoh Rong Corner (Cambodia)

Diving Koh Rong Corner presents a unique challenge for those seeking intimate reef encounters rather than wide-angle vistas. Conditions here often demand closer observation, inviting divers to slow down and meticulously explore its younger coral formations. While visibility can sometimes be less than ideal, this site rewards patience with discoveries of subtle marine life. It's a place to hone your buoyancy and observational skills, adapting to the environment to uncover its hidden dynamics.

As evening covers Koh Rong Corner, the local air temperature is measured at 29.8°C. The current wave height at the surface is recorded at 0.46m. These late-day readings characterize the surface conditions for the night.

Dive Site Coordinates

10.6607, 103.2580

Dive Site Characteristics

Ocean

Key Dive Site Facts

Max Depth11m / 36ft
Entry TypeBoat
Water Typesalt
Dive TypesReef

Dive Site Overview

Prepare for an engaging boat dive at Koh Rong Corner, a site characterized by its pretty young reef. Divers will find a distinctive experience within the Gulf of Thailand, differing from typical coral gardens.

Here, the bottom features a mix of flat sandy areas dotted with bumps and larger rocks, which transition into a gently sloping reef. Conditions might offer drift opportunities when the wind allows, enhancing exploration of its diverse substrate. Corals, while still developing, are healthy, presenting both hard, tree-shaped varieties and softer, fan-like formations.

Keep an eye out for creatures blending into the sand; this area often surprises with unexpected finds. Water temperatures are not consistently reported for this specific site, but generally range between 27-30°C (81-86°F) in the Gulf of Thailand, making wetsuit choices flexible.

Its design prioritizes accessibility, accommodating PADI Open Water Divers and Discover Scuba Diving participants. Despite sometimes greenish water and visibility up to 10 meters, the site delivers a rich tapestry of smaller marine encounters.

Best Time to Dive

Seasonal shifts significantly impact diving at Koh Rong Corner, with the dry months from January to April and December emerging as particularly favorable. During this period, dive scores consistently rate 'Excellent,' supported by average air temperatures ranging from 27.2°C to 29.1°C (81-84°F) and minimal rainfall, often less than 3mm per month. These conditions generally translate to calmer surface conditions and more comfortable diving. Conversely, the rainy season, peaking around July to September, sees a dip in overall dive quality to 'Moderate' or 'Good'. Rainfall during these months can reach over 20mm, and wave heights may increase, occasionally leading to less predictable sea states. While diving is possible year-round, those seeking the calmest waters and clearest conditions, which can still be up to 10 meters, will find the late dry season most rewarding. Planning with these seasonal shifts in mind helps optimize underwater exploration.

Jan: ExcellentScore: 9/10
Feb: ExcellentScore: 9/10
Mar: ExcellentScore: 9/10
Apr: ExcellentScore: 9/10
May: GoodScore: 8/10
Jun: GoodScore: 7/10
Jul: ModerateScore: 6/10Note: Noticeable current or wind
Aug: GoodScore: 7/10
Sep: GoodScore: 7/10
Oct: GoodScore: 8/10
Nov: GoodScore: 7/10
Dec: ExcellentScore: 9/10
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Excellent
Good
Moderate
Poor
Unsafe

Climate Historical Averages

Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.

Month
Air Temp
Max Waves
Wind Speed
Rain
January27°C0.4m24 km/h0.9 mm
February27°C0.4m21 km/h2.4 mm
March28°C0.4m20 km/h2.6 mm
April29°C0.3m18 km/h2.9 mm
May29°C0.4m20 km/h9.0 mm
June28°C0.8m26 km/h15.0 mm
July28°C0.9m29 km/h20.2 mm
August28°C0.8m26 km/h12.1 mm
September28°C0.9m27 km/h19.5 mm
October28°C0.4m20 km/h11.4 mm
November28°C0.5m27 km/h4.9 mm
December28°C0.5m26 km/h1.4 mm

Dive Experience & Conditions

A typical descent at Koh Rong Corner quickly brings divers to its maximum depth of 11 meters (36 ft). A relatively shallow profile predominates, making it accessible for various certification levels. Bottom topography varies from flat sandy expanses to areas interspersed with substantial rocks and small pinnacles, eventually sloping gently downwards. Currents here are not consistently strong but can facilitate pleasant drift dives, especially when influenced by local winds. Divers should be prepared for varying visibility; it's often reported around 10 meters, sometimes appearing greenish. Such conditions can lend a certain intimacy to the dive, encouraging close inspection of the reef's details rather than broad views. A healthy 'young reef' thrives, displaying a mix of hard and soft corals, providing shelter and foraging grounds for smaller species. Adapting to these conditions allows for a rewarding and detailed exploration.

Dive Difficulty & Safety Guidelines

Navigating Koh Rong Corner requires awareness of its variable conditions, particularly concerning current and visibility. While currents can create enjoyable drift dives, they are not always predictable, so divers should carry a Surface Marker Buoy (SMB) for safety. Reduced visibility, sometimes around 10 meters and described as greenish, means maintaining close proximity to your buddy and consistent communication are paramount. Suitable for PADI Open Water Divers and those undertaking Discover Scuba Diving, even experienced divers should practice good buoyancy control to protect the young reef. No specific unique hazards are consistently reported for this site beyond general diving considerations. Always brief yourself on local conditions with the dive operator and conduct thorough pre-dive checks. Respecting marine life and avoiding contact with corals helps preserve this developing ecosystem for future explorations.

Recommended Equipment

No verified equipment items yet.

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Verified equipment recommendations for this dive site are being reviewed and may be added as additional source checks are completed.

Recommended Dive Suit

With water temperatures around 31°C (88°F), many divers find a dive skin or rash guard provides comfortable protection.

Being prepared with flexible exposure options is a common approach among experienced divers.

Current forecasts indicate relatively stable conditions for the coming days.

Conditions last reviewed: 18:00 using the latest environmental data.

Dive Logistics & Preparation

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Hyperbaric Chamber

Check local Cambodia medical facilities.

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Entry Requirements

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Currency

KHR

Nearest Airports

Nearest airports to help plan travel to this dive area.

✈️Dara Sakor International AirportDSY
28 km
✈️Sihanouk International AirportKOS
42 km
✈️Phú Quốc International AirportPQC
97 km

Marine Life at Koh Rong Corner

Koh Rong Corner's underwater landscape supports a fascinating array of smaller marine life, often found camouflaged among the corals and sandy patches. Divers frequently encounter Bamboo and Coral Catsharks, typically resting discreetly under rocks or within crevices. Keep an eye out for the vibrant Flabellina nudibranchs, known for their striking colors and intricate spines, often found moving across the reef. Various species of rays, eels, and sea horses also inhabit these waters, blending well with their surroundings. Healthy anemones are home to resident anemonefish, while barrel sponges provide texture and habitat. From puffers to lobsters and crabs, and occasional octopus or squid, the area encourages close observation of its diverse, smaller inhabitants. Patient divers will find rewarding discoveries here.

Dive Centers Near Koh Rong Corner

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Frequently Asked Questions

What is the maximum depth at Koh Rong Corner?

Reaching a maximum depth of 11 meters (36 ft), the site's relatively shallow profile makes it accessible for various levels of divers.

What kind of reef structure can I expect?

You'll find a pretty young reef with a mix of hard and soft corals, alongside flat sandy bottoms, bumps, and larger rocks. Some areas transition into a gentle slope.

Is drift diving common here?

Yes, when conditions are right, particularly with favorable winds, you can experience nice drift dives. Currents are not always strong but can be present.

What is the typical visibility like?

Visibility at Koh Rong Corner is often reported around 10 meters and can sometimes appear greenish. This encourages closer inspection of the reef rather than distant views.

What marine life can I expect to see?

Look for Bamboo and Coral Catsharks resting on the bottom, colorful Flabellina nudibranchs, rays, eels, and various crustaceans. Anemonefish in anemones are also common.

What certification level is required for this dive site?

Suitable for PADI Open Water Divers and those participating in Discover Scuba Diving programs. Advanced Open Water training is also useful for skill refinement.

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