In the easternmost area in the Gulf of Thailand, is Koh Kood (AKA Ko Kut). It’s Thailand’s fourth-largest island, though despite its size, it’s relatively quiet, meaning divers can relish uncrowded dive sites. 

The diving here is excellent, with around ten dive sites suitable for divers of all skill levels. SItes are close to the island, with travel times normally ranging between 5-20 minutes by boat. Many dive operators venture to nearby islands, which allows even more variety. Some travel to the National Park Koh Rang, the islands Koh Chang and Koh Mak, where even more dive sites await. What’s more, new dive sites are always being discovered, allowing repeat visitors to experience unseen spots. 

Scuba diving here is typically easy, with depths ranging from 8 meters to 18 meters on average, meaning sites are suitable for advanced divers and beginners, and with shallower depths comes longer dives. Sites are uncrowded and mostly untouched, which has allowed the coral and fish to thrive.  

There are reputable dive centers on the island, along with resorts that cater to all budgets. Liveaboards visit the area too, so if you’re not staying on the island, you may be able to dive via such. As for dive courses, it’s a great place to obtain an open water certification due to calm seas, good visibility and shallow depths. 

Upcoming Events

Perfect Buoyancy

Perfect Buoyancy

SSI Perfect Buoyancy SpecialtyMaster your buoyancy. Perfect your technique. Become a better diver!Good buoyancy control is one of the most important skills in scuba diving. The SSI Perfect Buoyancy Specialty is designed to help you become more comfortable, confident, and efficient underwater.During this course, you'll work closely with your SSI instructor to improve your diving technique through practical exercises and underwater challenges.What will you learn?- Perfect Your Weighting Discover how to determine the correct amount of weight for your equipment and body, helping you achieve neutral buoyancy without unnecessary effort.- Master Your Breathing Control Learn how to use your breathing to make small adjustments to your position in the water, allowing you to hover effortlessly without constantly adjusting your BCD.- Improve Your Trim & Body Position Practise maintaining a streamlined, horizontal position underwater to reduce drag, improve your swimming efficiency, and minimise contact with the reef.- Hovering & Buoyancy Challenges Practise maintaining neutral buoyancy at different depths, hovering motionless, and completing underwater exercises without touching the bottom.- Fine-Tune Your BCD Control Learn how to make precise adjustments to your buoyancy compensator, improving your control during descents, ascents, and throughout your dive.- Improve Your Air Consumption By reducing unnecessary movement and improving your efficiency underwater, you may find yourself using less air and enjoying longer dives.- Protect the Marine Environment Learn techniques to avoid accidentally touching or damaging delicate corals and marine life.What does the course involve?Digital learning: Complete your SSI theory materials to understand the principles of buoyancy control.Practical training: Work with your instructor on weighting, breathing, body positioning, and buoyancy exercises.2 open-water training dives: Put your new skills into practice while exploring the beautiful underwater world around Koh Kood.SSI certification: Upon successful completion, receive your SSI Perfect Buoyancy Specialty certification.Whether you've recently completed your Open Water course or already have dozens of dives under your belt, this specialty will help you develop greater control and confidence underwater.Stop fighting your buoyancy and start enjoying the feeling of effortless diving!Join Koh Kood Divers and take your underwater skills to the next level. ????

Koh Kood Divers, 101 Moo 5, 23000, Trat, THA
October 4, 2026 +17 More
On Request
Deep Specialty

Deep Specialty

SSI Deep Diving SpecialtyExplore deeper. Expand your limits. Discover a whole new underwater world!Ready to take your diving adventures to the next level? The SSI Deep Diving Specialty is designed to give you the knowledge, skills, and confidence to safely explore deeper dive sites, reaching depths of up to 40 metres (130 feet).Discover deeper reefs, fascinating underwater landscapes, and marine life that you might not encounter in shallower waters.During this course, you'll work closely with your SSI instructor to develop the techniques and knowledge needed to plan and execute deeper dives safely.What will you learn?Understanding Deep DivingDiscover how increased depth affects your body, equipment, air consumption, and available bottom time. Learn why careful planning becomes increasingly important as you descend deeper.Deep Dive PlanningLearn how to plan dives within recreational limits, calculate your available bottom time, establish safe depth limits, and prepare appropriate emergency procedures.Gas Management & Air ConsumptionUnderstand how your breathing gas consumption increases with depth and learn to calculate your gas requirements, monitor your supply, and establish safe turn pressures.Recognising Nitrogen NarcosisLearn about the effects of nitrogen narcosis, how to recognise its symptoms, and what to do if you or your buddy experience them.Buoyancy Control at DepthPractise maintaining neutral buoyancy at greater depths, where changes in pressure and equipment compression require careful adjustments.Safe Descents & AscentsDevelop controlled descent and ascent techniques, including proper equalisation, monitoring ascent rates, and completing safety stops.Understanding No-Decompression LimitsLearn how depth affects your no-decompression limits, how to use your dive computer effectively, and why staying within your planned limits is essential.Emergency ProceduresPractise responding to potential deep-diving emergencies, including low-air situations, buddy separation, and other challenges associated with deeper dives.What does the course involve?Digital LearningComplete your SSI theory materials covering deep-diving physiology, dive planning, gas management, equipment considerations, and safety procedures.Dive Planning & PreparationWork with your instructor to plan each dive, establish depth and time limits, calculate gas requirements, and discuss emergency procedures.3 Open-Water Training DivesComplete three progressively deeper training dives under the supervision of your SSI instructor. Practise buoyancy control, depth awareness, gas management, navigation, and safe ascent procedures.Training dives are conducted within your applicable depth limits and local diving conditions.SSI Deep Diving Specialty CertificationUpon successful completion, receive your SSI Deep Diving Specialty certification, allowing you to plan recreational dives to a maximum depth of 40 metres, subject to your training, experience, and local regulations.Who can join?The SSI Deep Diving Specialty is available to certified divers who are at least 15 years old and meet the applicable SSI training prerequisites.You don't need to be an expert diver, but you should be comfortable with your basic diving skills and ready to expand your experience.Why choose Koh Kood Divers?At Koh Kood Divers, we focus on personalised instruction and small groups, allowing you to develop your skills at a comfortable pace.Our experienced instructors will guide you through every stage of your training, helping you build confidence and improve your understanding of deep diving.Go beyond the shallows and discover what lies beneath!Join Koh Kood Divers for your SSI Deep Diving Specialty and unlock new underwater adventures.Please note: The maximum certification depth is 40 metres, but actual training depths and dive sites depend on your experience, instructor assessment, weather, and local conditions.

Koh Kood Divers, 101 Moo 5, 23000, Trat, THA
October 4, 2026 +40 More
On Request
Koh Rang Marine Park Diving Excursions

Koh Rang Marine Park Diving Excursions

Koh Rang Marine Park – Dive Into Paradise!Discover one of the most spectacular underwater destinations in the Gulf of Thailand!Escape to the pristine waters of Koh Rang Marine Park, where tropical islands, colourful coral gardens, and thriving marine life create an unforgettable diving experience.Imagine descending into warm, crystal-clear water, surrounded by schools of tropical fish and beautiful coral formations. Explore underwater rock formations, discover hidden reef creatures, and keep your eyes open for stingrays, moray eels, pufferfish, and perhaps even a sea turtle!Koh Rang Marine Park offers a wonderful variety of dive sites, from shallow coral gardens to deeper reefs, making it an incredible destination for both newly certified and experienced divers.Your full-day diving adventure includes:2–3 guided dives at carefully selected Marine Park dive sitesSmall groups with a maximum of 4 divers per guideExperienced, professional dive guidesAll required scuba diving equipmentSpacious, comfortable dive boatDelicious lunch, snacks, and refreshmentsConvenient resort pickup and drop-offDeparture days: Every Tuesday, Thursday, and Saturday, weather permitting.Trip duration: Approximately 07:45–17:00.With its beautiful island scenery, rich marine biodiversity, and stunning underwater landscapes, Koh Rang Marine Park is much more than just another diving destination. It's a full day of adventure, relaxation, and discovery in one of Thailand's tropical marine environments.Don't just visit Koh Kood. Discover the underwater paradise waiting just beyond its shores!Join Koh Kood Divers and experience the magic of Koh Rang Marine Park.Marine Park entrance fees apply separately.

Koh Kood Divers, 101 Moo 5, 23000, Trat, THA
October 15, 2026 +58 More
On Request

Dive Activity

Diving in Koh Kood

The majority of diving in Koh Kood is what you’d expect from a tropical paradise. Stunning coral reefs teeming with colorful reef fish and a multitude of tropical species. Shallow reef diving is common, which is perfect for beginners and seasoned divers alike. Boat diving is common practice, though shore dives are offered depending on location. 

Many dive operators offer wreck diving, particularly at the HTMS Chang, which is located nearer to the neighbouring Koh Chang island. It’s the largest shipwreck in Thailand at around 100 meters in length, and is an unmissable site for wreck enthusiasts.

Dive Centers

Dive Sites

The best Months to dive in Koh Kood

Koh Kood offers excellent diving all year round as a result of its warm tropical climate. Air and sea temperatures fluctuate minimally year-round. The three main seasons are the dry, cool season, which is from November to February, the hot season from March to the end of May, and the rainy season, which normally starts around the end of May and continues until the end of October. The best time to dive is the dry, cool season, which runs from November until April when visibility is normally the clearest. The sea is warm at around 28°C-30°C (82°F-86°F), while air temperatures are about 27°C-30°C (80°F-86°F).

Top Wildlife Sightings in Koh Kood

Like much of Thailand, you’ll find a plethora of tropical marine life in Koh Kood. Macro fanatics will love the multi-colored nudibranchs and shrimp, while vibrant hard and soft corals and sponges show off their bursting colors under the penetrating sunlight. Swaying anemones shelter lively clownfish, while rocks and reef structures provide hiding places for moray eels and lobster. Other colorful species to marvel at include parrotfish, triggerfish, batfish, sea snakes, snapper, damselfish, octopus, cuttlefish, lionfish, scorpionfish, starfish and so much more. Turtles, barracuda and reef sharks also make appearances at dive sites, and lucky divers may even spot a whale shark. 

Wildlife Sightings are Based on User Generated Content

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 200

Moray Eel

Moray Eel

140 Sightings
J
24
F
11
M
8
A
17
M
3
J
3
J
3
A
5
S
11
O
3
N
34
D
18

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 27

Barracuda

Barracuda

55 Sightings
J
5
F
0
M
0
A
9
M
4
J
0
J
4
A
9
S
4
O
1
N
11
D
8
Green Turtle

Green Turtle

18 Sightings
J
2
F
2
M
0
A
0
M
0
J
0
J
4
A
2
S
1
O
2
N
5
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 600

Wrasse

Wrasse

11 Sightings
J
1
F
4
M
0
A
0
M
3
J
0
J
0
A
0
S
1
O
0
N
0
D
2
Hawksbill Turtle

Hawksbill Turtle

6 Sightings
J
0
F
1
M
0
A
0
M
0
J
0
J
1
A
0
S
0
O
1
N
3
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 100

Parrotfish

Parrotfish

122 Sightings
J
12
F
8
M
7
A
8
M
16
J
4
J
4
A
9
S
7
O
5
N
24
D
18

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 80

Stingrays

Stingrays

112 Sightings
J
16
F
8
M
12
A
20
M
7
J
2
J
5
A
4
S
6
O
10
N
13
D
9

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 90

Angelfish

Angelfish

105 Sightings
J
16
F
12
M
6
A
14
M
13
J
0
J
4
A
6
S
5
O
0
N
20
D
9

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 130

Butterfly Fish

Butterfly Fish

103 Sightings
J
16
F
12
M
8
A
6
M
12
J
1
J
4
A
9
S
4
O
3
N
20
D
8

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 8

Bannerfish

Bannerfish

101 Sightings
J
12
F
12
M
4
A
11
M
13
J
1
J
2
A
2
S
4
O
5
N
24
D
11

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 28

Clownfish

Clownfish

94 Sightings
J
12
F
12
M
8
A
8
M
13
J
0
J
4
A
7
S
5
O
5
N
16
D
4

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 40

Triggerfish

Triggerfish

54 Sightings
J
3
F
7
M
7
A
7
M
3
J
0
J
3
A
2
S
1
O
5
N
14
D
2

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 130

Pufferfish

Pufferfish

53 Sightings
J
10
F
8
M
7
A
4
M
4
J
3
J
0
A
0
S
2
O
2
N
8
D
5

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 350

Damselfish

Damselfish

33 Sightings
J
5
F
7
M
1
A
0
M
8
J
1
J
2
A
0
S
2
O
0
N
5
D
2

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 90

Goatfish

Goatfish

30 Sightings
J
0
F
5
M
2
A
0
M
9
J
0
J
1
A
0
S
3
O
1
N
7
D
2

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 85

Surgeonfish

Surgeonfish

29 Sightings
J
2
F
6
M
2
A
0
M
4
J
0
J
2
A
0
S
4
O
1
N
5
D
3

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 150

Sweetlips and Grunts

Sweetlips and Grunts

29 Sightings
J
0
F
4
M
2
A
0
M
3
J
0
J
2
A
2
S
4
O
1
N
9
D
2

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 110

Snapper

Snapper

26 Sightings
J
6
F
4
M
0
A
0
M
3
J
0
J
3
A
1
S
2
O
0
N
7
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 3000

Nudibranch

Nudibranch

26 Sightings
J
2
F
3
M
1
A
4
M
2
J
0
J
0
A
4
S
0
O
1
N
5
D
4

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 250

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 60

Soldierfish

Soldierfish

17 Sightings
J
4
F
2
M
0
A
0
M
8
J
0
J
0
A
1
S
0
O
0
N
2
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 25

Boxfish

Boxfish

16 Sightings
J
3
F
3
M
2
A
0
M
0
J
0
J
0
A
1
S
2
O
1
N
1
D
3

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 12

Lionfish

Lionfish

16 Sightings
J
0
F
4
M
2
A
0
M
1
J
0
J
1
A
0
S
0
O
0
N
6
D
2

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 120

Cuttlefish

Cuttlefish

13 Sightings
J
1
F
0
M
0
A
0
M
1
J
0
J
0
A
6
S
1
O
2
N
1
D
1

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 3400

Shrimp

Shrimp

7 Sightings
J
0
F
0
M
2
A
2
M
0
J
0
J
0
A
0
S
0
O
0
N
2
D
1

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 250

Scorpionfish

Scorpionfish

7 Sightings
J
2
F
2
M
0
A
0
M
0
J
0
J
0
A
0
S
3
O
0
N
0
D
0

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 30

Stonefish

Stonefish

6 Sightings
J
3
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
1
N
0
D
2

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 7000

Crab

Crab

5 Sightings
J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
4
D
1

The image shown is a representative illustration and does not depict every individual animal in this category.

Total number of species approx.: 20

Porcupinefish

Porcupinefish

4 Sightings
J
2
F
0
M
2
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
0
D
0

Curated by Interest

Events by Lifestyle Category

Underwater Beginner