Scuba Diving at Koh Trang Ol

Diving atKoh Trang Ol (Cambodia)

Koh Trang Ol stands out as a premier pinnacle dive site in Cambodia's waters, positioned strategically west of Koh Prins and Koh Moan. This site is distinguished by its vibrant soft and hard coral reef structures, which descend to approximately 26 m / 85 ft. It's a location where fortunate divers might encounter impressive pelagic species like eagle rays and even whale sharks, marking it as a significant underwater destination.

As evening covers Koh Trang Ol, the local air temperature is measured at 28.5°C. The current wave height at the surface is recorded at 0.4 m. These late-day readings characterize the surface conditions for the night.

Dive Site Location & Key Facts

Everything you need to know about this dive site.

Coordinates10.3614, 102.9255
Site Characteristics
Ocean
Max Depth26m / 85ft
Entry Typeboat
Water Typesalt
Dive Types
PinnacleReef

Dive Site Overview

Exploring Koh Trang Ol presents a compelling underwater experience, centered around its extensive reef system. This offshore pinnacle, accessible solely by boat, is carpeted with a colorful array of diverse soft and hard corals, providing a rich habitat for various marine species.

The structure descends gradually, allowing for exploration from shallower reef sections down to approximately 26 meters. For those looking to maximize their dive time and explore deeper areas, certifications such as PADI Advanced Open Water Diver and PADI Enriched Air Diver can enhance the experience. Air temperatures here typically range from 27.5-29.5°C / 82-85°F throughout the year, ensuring consistently warm surface conditions.

While specific water temperature data isn't consistently reported for the site itself, conditions are generally suitable for tropical diving, often complemented by moderate wind speeds averaging 20-30 km/h. Currents here can vary, and while generally mild, they contribute to the nutrient flow that sustains the vibrant ecosystem.

The site's character often appeals to divers who appreciate diverse coral topography and the potential for pelagic encounters.

API Debug Error:
Weather Error: fetch failed

Best Time to Dive

Planning a dive trip to Koh Trang Ol yields the most favorable conditions from December through April. During these months, the dive score is consistently rated as Excellent, reflecting calmer seas and minimal rainfall. For instance, January sees an average rainfall of less than 1 mm, with wave heights around 0.4 meters / 1.3 feet, and February offers similar conditions with only 2 mm of rain. Conversely, the period from May to November, while still offering good diving, presents higher chances of rain and rougher seas. September, typically the wettest month, experiences around 17 mm of rainfall, and June through September often has increased wave heights, reaching up to 0.8 meters / 2.6 feet, potentially impacting visibility and comfort for boat entries.

PEAK SEASON SCORE

92/100
Excellent

Scores combine air & water temps, waves, wind & rainfall for overall conditions.


BEST MONTHS TO DIVE

JAN
FEB
APR
DIVE SCORE
(0–100)
91
JAN
91
FEB
91
MAR
93
APR
86
MAY
71
JUN
65
JUL
72
AUG
65
SEP
75
OCT
82
NOV
86
DEC
AIR TEMP (°C)
27
28
28
29
29
29
28
28
28
28
28
28
WAVES (M)
0.4
0.4
0.4
0.3
0.4
0.8
0.9
0.7
0.8
0.4
0.5
0.5
WIND (KM/H)
22
20
21
18
21
28
30
27
28
20
25
25
RAIN (MM)
1.0
2.1
1.9
3.0
8.1
11.4
15.4
11.0
17.0
11.7
5.7
2.3
DIVE SCORE GUIDE (0–100)
Excellent (90–100)
Very Good (80–89)
Good (70–79)
Moderate (50–69)
Poor (30–49)
Not Recommended (0–29)

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

Dive Experience & Conditions

The dive site reveals a diverse depth profile, with its vibrant reef structures extending to depths around 26 meters. The pinnacle itself provides a dynamic environment, transitioning from shallower reef sections to deeper expanses. Conditions generally feature warm, saline waters typical of an ocean environment. While specific visibility data for Koh Trang Ol isn't consistently reported, other Cambodian sites in similar offshore settings often experience visibility typically ranging from 10 to 30 meters, or sometimes up to 100 feet, influenced by seasonal currents and recent weather. This variability suggests that divers should be prepared for changing conditions, which can add to the adventure.

Dive Difficulty & Safety Guidelines

Approaching Koh Trang Ol requires a thoughtful consideration of diver skill and preparedness, especially as boat entry is the standard method for accessing this offshore pinnacle. While no specific hazards are reported for Koh Trang Ol, general safe diving practices are always essential. Divers should maintain proper buoyancy control to protect the colorful coral formations. Due to the potential for encountering deeper sections and currents, having training such as the PADI Advanced Open Water Diver and PADI Enriched Air Diver certifications is useful. Always dive within your certified limits and be mindful of your air consumption.

Recommended Equipment

  • Dive Computer
  • DSMB

This gear list is based on verified equipment signals for Koh Trang Ol, Cambodia. Always confirm final gear choices with your dive operator, guide, or liveaboard.

Recommended Dive Suit

Divers visiting Koh Trang Ol today can expect water conditions around 30°C (87°F). Surface air temperatures are resting at 28°C (83°F).

Many divers choose dive skin or rash guard when diving in similar conditions. A hood or vest is suggested for sensitive divers due to surface winds.

Short-term weather patterns suggest stable conditions for divers visiting the area.

Koh Trang Ol conditions last reviewed: 21:27 local time (UTC+7), Jun 10, 2026

Due to technical issues with our weather providers, data hasn't been fetched for over 48 hours. The data above reflects the conditions at the time of the last successful fetch.

Emergency & Medical Support

Essential information to help you plan your dive trip to Koh Trang Ol.

Hyperbaric Chamber

Hyperbaric chambers are a critical part of dive safety infrastructure. Availability varies significantly by region, and not all dive areas have immediate access.

Before diving, it's recommended to:

  • confirm nearest medical facilities
  • check emergency procedures with local dive operators
  • ensure dive insurance covers evacuation if required
24/7 Available

Divers Alert Network

Diving emergency assistance available through DAN World.

+1-919-684-9111
  • 24/7 emergency hotline
  • Diving medical assistance
  • Evacuation coordination
View official DAN emergency contacts

Emergency contacts are provided for reference. Always verify local emergency services before diving.

Marine Life at Koh Trang Ol

The waters surrounding Koh Trang Ol are known for the chance of encountering larger pelagic species. Lucky divers may spot eagle rays gracefully navigating the reef, and there are occasional reports of whale shark sightings. Beyond these impressive encounters, the colorful soft and hard coral reef systems host a variety of common reef fish. Divers might observe angelfish, pufferfish, and various nudibranchs amidst the corals. Over sandy patches, schooling trevally can be seen, adding to the rich marine activity.

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Dive Centers Near Koh Trang Ol

Bubbles Up Dive Center
49.5 km away

Bubbles Up Dive Center

5| 253 reviews
Today: 08:00 - 18:00
Sun08:00 - 18:00
Mon08:00 - 18:00
Tue08:00 - 18:00
Wed08:00 - 18:00
Thu08:00 - 18:00
Fri08:00 - 18:00
Sat08:00 - 18:00
Scuba Nation Diving Centre Cambodia

Scuba Nation Diving Centre Cambodia

4.9| 422 reviews
49.5 km
Cambodia Diving Group

Cambodia Diving Group

4.2| 43 reviews
49.6 km
Blue Lagoon Divers Cambodia

Blue Lagoon Divers Cambodia

4.2| 33 reviews
49.7 km

Nearest Airports

Nearest airports to help plan travel to this dive area.

Dara Sakor International AirportDSY
70 km
Sihanouk International AirportKOS
81 km
Phú Quốc International AirportPQC
119 km
💵Currency:KHR

Search Flights

Check available flights and routes on Expedia, using the nearby airports listed in this section.

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Frequently Asked Questions

Where is Koh Trang Ol located?

Koh Trang Ol is an offshore pinnacle dive site in Cambodian waters, west of Koh Prins and Koh Moan. Divers can only reach this site via boat.

What is the maximum depth at Koh Trang Ol?

The reef structures at Koh Trang Ol descend to approximately 26 meters, with some sections reaching deeper. This offers diverse exploration opportunities for certified divers.

What marine life can be seen at Koh Trang Ol?

Divers at Koh Trang Ol have the chance to encounter larger species such as eagle rays and, on rare occasions, whale sharks. The vibrant soft and hard coral reef systems also host a variety of common reef fish, including angelfish and pufferfish.

What are the recommended certifications for diving here?

While basic Open Water Diver certification allows access to shallower reef areas, certifications like PADI Advanced Open Water Diver and PADI Enriched Air Diver are considered useful. These can enhance bottom time and facilitate exploration of the site's deeper sections.

What are the typical water conditions?

The waters around Koh Trang Ol are warm and saline, characteristic of a tropical ocean environment. While specific water temperature data isn't consistently reported, conditions are generally comfortable for diving. Visibility typically ranges from 10 to 30 meters, sometimes extending to 100 feet, influenced by seasonal currents and recent weather patterns.

Is it suitable for beginner divers?

Portions of the reef are accessible to beginner divers; however, its offshore nature and potential for deeper sections mean it's often more comfortably explored by certified divers with some experience. Always dive within your training and comfort level.

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