© Aqualung

Explore Bid Nok, Bida Nai, Ma Long, Pa Long, VikingCave and Phi Ley Wall

Exploring the dive sites of Bid Nok, Bida Nai, Ma Long, Pa Long, Viking Cave, and Phi Ley Wall offers a captivating underwater adventure that showcases the diversity and beauty of marine life in Thailand. Steep limestone cliffs at Bid Nok and Bida Nai create dramatic underwater walls teeming with vibrant marine life, providing divers with overhangs and caves to explore. These areas are a haven for hawksbill turtles, elusive seahorses, and mesmerizing sea snakes, making every dive an opportunity to encounter unique underwater creatures.

Ma Long is renowned for its abundance of turtles, while Pa Long offers a stunning shallow reef where the colorful coral formations are a feast for the eyes. Dive enthusiasts can also experience the intriguing geology at Viking Cave and Phi Ley Wall, where the majestic underwater landscapes shelter a rich variety of marine species. Whether diving from the shore, a boat, or a liveaboard, each site offers a different glimpse into the vibrant aquatic world, with seasonal migrations adding an element of surprise and excitement for divers seeking an unforgettable diving experience in Thailand.

Upcoming Events

Shark Ecology for Snorkelers

Shark Ecology for Snorkelers

Demystify the lords of the oceans, understand their vital role in the marine ecosystem, and learn how to observe them safely during your dives.Why take the Shark Ecology specialty course?Change the way you look at one of the most fascinating and endangered predators on the planet: Sharks often suffer from an unfair reputation. Yet they play an essential role in the balance and health of our oceans. The SSI Shark Ecology Specialty immerses you in the captivating world of these magnificent creatures to help you understand their anatomy, evolution, and behavior. By mastering shark biology and the rules of eco-responsible interaction, you’ll experience your next dives with a knowledgeable and passionate perspective.Biology & Sensory Receptors: Discover their highly developed senses (Lorenzini ampullae, lateral line, exceptional sense of smell).Species Identification: Learn to recognize Thailand’s iconic species (whale shark, leopard shark, blacktip reef shark).Behavior & Interactions: Decoding shark body language and adopting best practices for underwater observation.Ecological Role & Conservation: Understand the impact of their disappearance and commit to their global protection.PrerequisitesMinimum age: 10 years old.Prerequisites: No diving experience required (also accessible to non-divers, freedivers, and snorkelers).

Apo Dhatu Divers, 490 Moo 3 Saladan, Koh Lanta, 81150, Saladan, Lanta, Krabi, THA
October 1, 2026 +241 More
$139.38
THB 4,600.00
Shark Ecology for Snorkelers

Shark Ecology for Snorkelers

Demystify the lords of the oceans, understand their vital role in the marine ecosystem, and learn how to observe them safely during your dives.Why take the Shark Ecology specialty course?Change the way you look at one of the most fascinating and endangered predators on the planet: Sharks often suffer from an unfair reputation. Yet they play an essential role in the balance and health of our oceans. The SSI Shark Ecology specialty immerses you in the captivating world of these magnificent sharks to help you understand their anatomy, evolution, and behavior. By mastering shark biology and the rules for eco-responsible interaction, you’ll experience your next dives with a knowledgeable and passionate perspective.Biology & Sensory Receptors: Discover their highly developed senses (Lorenzini’s ampullae, lateral line, and exceptional sense of smell).Species Identification: Learn to recognize Thailand’s iconic species (whale shark, leopard shark, blacktip reef shark).Behavior & Interactions: Decoding shark body language and adopting best practices for underwater observation.Ecological Role & Conservation: Understand the impact of their disappearance and commit to their global protection.PrerequisitesMinimum age: 10 years old.Prerequisites: No diving experience required (also accessible to non-divers, freedivers, and snorkelers).

Apo Dhatu Divers, 490 Moo 3 Saladan, Koh Lanta, 81150, Saladan, Lanta, Krabi, THA
October 1, 2026 +241 More
$121.20
THB 4,000.00

Dive Activity

Diving in Bid Nok, Bida Nai, Ma Long, Pa Long, VikingCave and Phi Ley Wall

Bid Nok and Bida Nai are renowned dive sites offering vibrant marine life and excellent visibility. Divers often encounter colorful coral gardens and a variety of fish species, making them popular for both beginner and advanced divers. Wreck dives are a highlight, with sunken ships serving as artificial reefs attracting diverse marine life. Ma Long and Pa Long provide unique shore diving experiences. These sites are ideal for those who prefer the convenience of diving directly from the shore, allowing for flexible dive schedules. Viking Cave and Phi Ley Wall offer stunning underwater landscapes, with the latter known for its breathtaking vertical walls and occasional sightings of larger pelagic species. Night dives in these areas reveal the nocturnal behaviors of marine creatures, offering an unforgettable experience. Both shore and liveaboard options are available, catering to different preferences and diving styles.

Dive Sites

The best Months to dive in Bid Nok, Bida Nai, Ma Long, Pa Long, VikingCave and Phi Ley Wall

Diving around Bid Nok, Bida Nai, Ma Long, Pa Long, Viking Cave, and Phi Ley Wall offers diverse experiences throughout the year. Water temperatures generally range from 28°C–30°C/82°F–86°F, providing comfortable conditions for divers. Visibility typically spans between 10 to 30 meters/33 to 98 feet, with the best clarity during the dry season from November to April. Diving is possible year-round, but the southwest monsoon, from May to October, can bring stronger winds and currents, potentially reducing visibility and increasing water movement. During this period, divers should be cautious, as conditions can vary day-to-day. Despite these fluctuations, the underwater life remains vibrant, offering rewarding experiences throughout the year.

Top Wildlife Sightings in Bid Nok, Bida Nai, Ma Long, Pa Long, VikingCave and Phi Ley Wall

The vibrant marine life in the areas of Bid Nok, Bida Nai, Ma Long, Pa Long, Viking Cave, and Phi Ley Wall offers divers an enticing underwater exploration. Common reef fish like parrotfish, butterflyfish, and angelfish are abundant year-round, filling the colorful coral gardens with life. These sites provide a thriving habitat for these species, making encounters almost certain for divers. Seasonal highlights include blacktip reef sharks and leopard sharks, especially around Bida Nok and Bida Nai during the cooler months from November to April. Turtles are often spotted gliding gracefully past the reefs in places like Viking Cave and Phi Ley Wall, particularly from May to October. Additionally, eagle rays might surprise divers with their majestic appearances near Ma Long and Pa Long, especially during the transition months between seasons. Observing such magnificent creatures adds an exciting dimension to diving in these locations.

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

5.1k Sightings
J
533
F
564
M
503
A
392
M
281
J
248
J
483
A
490
S
216
O
332
N
482
D
568
Hawksbill Turtle

Hawksbill Turtle

3.1k Sightings
J
406
F
401
M
353
A
281
M
173
J
103
J
195
A
215
S
82
O
158
N
317
D
443

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

2.7k Sightings
J
290
F
320
M
313
A
229
M
192
J
159
J
217
A
269
S
106
O
126
N
207
D
286
Green Turtle

Green Turtle

1.7k Sightings
J
227
F
238
M
265
A
194
M
58
J
83
J
71
A
66
S
23
O
88
N
142
D
251

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

534 Sightings
J
33
F
53
M
44
A
37
M
40
J
50
J
53
A
66
S
25
O
31
N
45
D
57

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

Total number of species approx.: 300

Octopus

Octopus

436 Sightings
J
12
F
25
M
98
A
74
M
45
J
54
J
38
A
55
S
6
O
0
N
10
D
19

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

Total number of species approx.: 25

Eagle Ray

Eagle Ray

141 Sightings
J
10
F
2
M
0
A
4
M
0
J
0
J
0
A
20
S
17
O
20
N
55
D
13

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

4.7k Sightings
J
473
F
540
M
550
A
379
M
280
J
250
J
396
A
404
S
193
O
295
N
449
D
532

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

4.1k Sightings
J
455
F
479
M
454
A
282
M
234
J
177
J
297
A
328
S
155
O
256
N
419
D
516

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

3.8k Sightings
J
371
F
429
M
423
A
324
M
236
J
179
J
297
A
313
S
169
O
250
N
403
D
439

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

3.6k Sightings
J
384
F
397
M
385
A
288
M
216
J
219
J
287
A
311
S
147
O
216
N
290
D
414

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

3.1k Sightings
J
274
F
339
M
360
A
251
M
178
J
147
J
273
A
262
S
120
O
219
N
322
D
346

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

3.1k Sightings
J
308
F
349
M
323
A
238
M
199
J
172
J
268
A
293
S
113
O
185
N
264
D
343

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

3k Sightings
J
266
F
336
M
358
A
270
M
216
J
171
J
250
A
286
S
123
O
190
N
242
D
263

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

2.6k Sightings
J
264
F
294
M
273
A
217
M
148
J
136
J
212
A
232
S
106
O
157
N
222
D
304
Blacktip Reef Shark

Blacktip Reef Shark

2.4k Sightings
J
241
F
358
M
280
A
196
M
157
J
151
J
226
A
256
S
107
O
84
N
150
D
159

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

1.8k Sightings
J
184
F
200
M
194
A
159
M
125
J
104
J
159
A
177
S
71
O
85
N
152
D
225

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

1.7k Sightings
J
173
F
214
M
188
A
124
M
96
J
77
J
134
A
158
S
80
O
100
N
148
D
192

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

1.6k Sightings
J
133
F
140
M
168
A
103
M
113
J
81
J
150
A
179
S
78
O
129
N
151
D
168

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

1.6k Sightings
J
140
F
177
M
183
A
122
M
111
J
96
J
135
A
172
S
74
O
81
N
110
D
165

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

Total number of species approx.: 250

Grouper/Basslets

Grouper/Basslets

1.5k Sightings
J
116
F
158
M
132
A
121
M
93
J
89
J
151
A
189
S
87
O
90
N
128
D
132

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

1.4k Sightings
J
106
F
158
M
147
A
129
M
95
J
85
J
150
A
146
S
71
O
106
N
118
D
136

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

1.4k Sightings
J
82
F
138
M
153
A
143
M
136
J
105
J
130
A
176
S
81
O
95
N
91
D
107

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

1.3k Sightings
J
124
F
145
M
152
A
110
M
82
J
59
J
122
A
85
S
38
O
129
N
138
D
136

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

1.2k Sightings
J
94
F
122
M
131
A
98
M
63
J
73
J
129
A
185
S
85
O
59
N
73
D
71

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

Total number of species approx.: 3

Trumpetfish

Trumpetfish

1.1k Sightings
J
105
F
130
M
105
A
83
M
81
J
42
J
76
A
123
S
53
O
92
N
124
D
133

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

1.1k Sightings
J
58
F
107
M
119
A
94
M
65
J
67
J
114
A
134
S
48
O
92
N
67
D
98

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

1k Sightings
J
89
F
98
M
109
A
58
M
48
J
46
J
102
A
136
S
40
O
99
N
100
D
112

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

902 Sightings
J
58
F
77
M
157
A
123
M
52
J
57
J
70
A
78
S
16
O
32
N
80
D
102

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

798 Sightings
J
102
F
104
M
64
A
48
M
39
J
32
J
49
A
36
S
34
O
56
N
104
D
130

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

Total number of species approx.: 15

Garfish

Garfish

782 Sightings
J
61
F
82
M
91
A
67
M
71
J
44
J
54
A
58
S
21
O
59
N
89
D
85

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

Total number of species approx.: 60

Squirrelfish

Squirrelfish

739 Sightings
J
89
F
83
M
84
A
73
M
37
J
40
J
64
A
57
S
20
O
61
N
55
D
76

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

Total number of species approx.: 300

Squid

Squid

677 Sightings
J
33
F
80
M
122
A
114
M
62
J
68
J
46
A
69
S
7
O
1
N
30
D
45

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

Total number of species approx.: 3

Cornetfish

Cornetfish

658 Sightings
J
57
F
99
M
84
A
61
M
38
J
57
J
57
A
86
S
21
O
34
N
30
D
34

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

621 Sightings
J
50
F
71
M
62
A
91
M
53
J
65
J
42
A
71
S
18
O
12
N
25
D
61
Banded Sea Krait

Banded Sea Krait

551 Sightings
J
46
F
58
M
56
A
55
M
10
J
0
J
40
A
55
S
37
O
38
N
80
D
76

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

Total number of species approx.: 40

Jackfish

Jackfish

533 Sightings
J
54
F
53
M
58
A
33
M
18
J
17
J
46
A
64
S
29
O
49
N
59
D
53

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

Total number of species approx.: 60

Spiny Lobster

Spiny Lobster

515 Sightings
J
48
F
47
M
51
A
100
M
49
J
56
J
35
A
54
S
7
O
0
N
38
D
30

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

Total number of species approx.: 55

Lobster

Lobster

458 Sightings
J
22
F
38
M
44
A
101
M
45
J
59
J
34
A
49
S
6
O
0
N
35
D
25

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

394 Sightings
J
11
F
31
M
31
A
83
M
52
J
55
J
37
A
54
S
6
O
11
N
12
D
11

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

Total number of species approx.: 130

Pipefish

Pipefish

355 Sightings
J
18
F
26
M
29
A
43
M
32
J
38
J
49
A
58
S
33
O
11
N
0
D
18

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

Total number of species approx.: 120

Flounder

Flounder

342 Sightings
J
11
F
16
M
37
A
32
M
43
J
57
J
54
A
72
S
20
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

259 Sightings
J
30
F
24
M
28
A
21
M
12
J
0
J
0
A
26
S
0
O
42
N
42
D
34

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

Total number of species approx.: 300

Snake Eel

Snake Eel

257 Sightings
J
26
F
26
M
23
A
0
M
22
J
27
J
32
A
81
S
20
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.: 50

Frogfish

Frogfish

219 Sightings
J
48
F
23
M
34
A
19
M
10
J
17
J
16
A
20
S
6
O
0
N
0
D
26

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

Total number of species approx.: 80

Emperor

Emperor

195 Sightings
J
0
F
0
M
14
A
13
M
17
J
31
J
34
A
39
S
6
O
12
N
18
D
11

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

Total number of species approx.: 190

Conger Eel

Conger Eel

191 Sightings
J
5
F
19
M
15
A
16
M
19
J
33
J
30
A
49
S
5
O
0
N
0
D
0
Flatback Turtle

Flatback Turtle

162 Sightings
J
0
F
0
M
0
A
21
M
26
J
45
J
26
A
40
S
4
O
0
N
0
D
0
Zebra Shark

Zebra Shark

154 Sightings
J
18
F
0
M
6
A
27
M
25
J
20
J
17
A
15
S
6
O
0
N
8
D
12
Spiny Seahorse

Spiny Seahorse

143 Sightings
J
21
F
44
M
26
A
17
M
0
J
0
J
0
A
0
S
0
O
0
N
12
D
23

Curated by Interest

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Underwater Beginner