Explore Rock Islands

Nestled between Koror and Peleliu in Palau's southern lagoon, the Rock Islands are a diver's paradise, renowned for their stunning landscapes and vibrant marine life. This UNESCO World Heritage Site is home to over 200 limestone formations that rise dramatically from the ocean, topped with lush green jungles. As you dive beneath these mushroom-shaped islands, you'll discover an underwater wonderland teeming with biodiversity. The islands' unique topography creates a variety of dive environments, from vibrant coral reefs to thrilling walls and intriguing wrecks. One of the highlights of diving in the Rock Islands is the iconic Blue Corner. Known for its strong currents, divers secure themselves with a reef hook to witness the exhilarating spectacle of schools of fish, sharks, and other marine creatures drawn to the nutrient-rich waters. Another must-visit site is Blue Holes, where massive caverns beckon with their enchanting beauty, and the German Channel, a popular spot for spotting graceful manta rays. For a different kind of aquatic adventure, Jellyfish Lake offers an unforgettable snorkeling experience among thousands of non-stinging jellyfish. With its rich marine ecosystems and diverse dive sites, the Rock Islands promise an awe-inspiring journey beneath the waves.

Places to explore

Dive Activity

Diving in Rock Islands

The Rock Islands, nestled in Palau, are a diver's paradise. Among the top dive sites, Blue Corner stands out with its vibrant coral reefs and diverse marine life, offering thrilling drift dives. Another notable spot is the German Channel, famous for its manta ray sightings and intriguing cleaning stations, especially during night dives when these majestic creatures are most active.

For wreck diving enthusiasts, the Iro Maru, a World War II Japanese tanker, offers a fascinating underwater exploration opportunity. The balance between shore and liveaboard diving is well-maintained, with liveaboards providing access to remote sites like Ulong Channel, known for its abundant shark population. Meanwhile, shore dives offer convenience and easy access to nearby reefs, making the Rock Islands a versatile destination for all levels of divers.

Top Wildlife Sightings in Rock Islands

The Rock Islands, located in Palau, are a diver's paradise, teeming with diverse marine life. Common reef fish such as butterflyfish, angelfish, and parrotfish can be spotted year-round, darting among the vibrant corals. These reef inhabitants provide a colorful underwater show for divers exploring the shallow waters.

Seasonal highlights include the majestic manta rays, often seen gliding gracefully between December and March. Sharks, particularly the grey reef and blacktip species, are frequent visitors and can be encountered near Blue Corner, a renowned dive site. Green and hawksbill turtles are also prevalent, especially from April to July, offering divers a chance to observe these gentle creatures as they navigate the warm waters of the Rock Islands.

Wildlife Sightings are Based on User Generated Content

Green Turtle

254 Sightings
J
37
F
22
M
20
A
29
M
12
J
7
J
5
A
16
S
18
O
7
N
36
D
45

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

Total number of species: 27

Barracuda

249 Sightings
J
28
F
19
M
29
A
32
M
21
J
7
J
0
A
14
S
15
O
13
N
15
D
56

Giant Oceanic Manta Ray

244 Sightings
J
38
F
25
M
14
A
16
M
13
J
6
J
2
A
12
S
11
O
15
N
28
D
64

Reef Manta Ray

232 Sightings
J
41
F
32
M
15
A
13
M
9
J
9
J
0
A
8
S
14
O
9
N
34
D
48

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

Total number of species: 600

Wrasse

176 Sightings
J
25
F
10
M
19
A
28
M
23
J
8
J
2
A
10
S
7
O
15
N
9
D
20

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

Total number of species: 200

Moray Eel

50 Sightings
J
0
F
11
M
0
A
13
M
9
J
0
J
0
A
6
S
0
O
0
N
11
D
0

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

Total number of species: 25

Eagle Ray

29 Sightings
J
0
F
0
M
0
A
18
M
0
J
0
J
2
A
9
S
0
O
0
N
0
D
0

Hawksbill Turtle

23 Sightings
J
0
F
0
M
0
A
7
M
3
J
5
J
0
A
3
S
0
O
5
N
0
D
0

Whitetip Reef Shark

375 Sightings
J
58
F
38
M
43
A
46
M
22
J
14
J
6
A
16
S
22
O
12
N
37
D
61

Grey Reef Shark

349 Sightings
J
37
F
23
M
35
A
39
M
15
J
15
J
4
A
26
S
22
O
20
N
48
D
65

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

Total number of species: 40

Jackfish

173 Sightings
J
33
F
0
M
24
A
21
M
13
J
5
J
0
A
5
S
14
O
18
N
0
D
40

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

Total number of species: 100

Parrotfish

167 Sightings
J
24
F
0
M
29
A
27
M
15
J
11
J
0
A
11
S
10
O
11
N
0
D
29

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

Total number of species: 28

Clownfish

155 Sightings
J
32
F
0
M
26
A
22
M
16
J
14
J
0
A
16
S
12
O
5
N
0
D
12

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

Total number of species: 90

Angelfish

154 Sightings
J
39
F
10
M
26
A
21
M
15
J
8
J
0
A
11
S
10
O
14
N
0
D
0

Blacktip Reef Shark

150 Sightings
J
17
F
13
M
20
A
13
M
18
J
10
J
0
A
9
S
0
O
0
N
17
D
33

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

Total number of species: 40

Triggerfish

127 Sightings
J
13
F
9
M
21
A
21
M
15
J
6
J
0
A
15
S
9
O
6
N
0
D
12

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

Total number of species: 130

Butterfly Fish

122 Sightings
J
22
F
0
M
29
A
21
M
14
J
9
J
0
A
10
S
10
O
7
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: 8

Bannerfish

103 Sightings
J
24
F
8
M
12
A
11
M
7
J
2
J
0
A
9
S
5
O
0
N
0
D
25

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

Total number of species: 250

Grouper/Basslets

97 Sightings
J
0
F
0
M
24
A
16
M
8
J
7
J
0
A
6
S
7
O
11
N
3
D
15

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

Total number of species: 150

Sweetlips and Grunts

84 Sightings
J
10
F
0
M
22
A
17
M
5
J
0
J
0
A
10
S
4
O
5
N
0
D
11

Silvertip Shark

82 Sightings
J
14
F
11
M
0
A
12
M
10
J
0
J
0
A
6
S
4
O
5
N
0
D
20

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

Total number of species: 110

Snapper

82 Sightings
J
0
F
8
M
22
A
20
M
8
J
5
J
0
A
2
S
0
O
7
N
0
D
10

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

Total number of species: 60

Soldierfish

70 Sightings
J
9
F
0
M
10
A
16
M
5
J
0
J
0
A
6
S
9
O
5
N
0
D
10

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

Total number of species: 85

Surgeonfish

67 Sightings
J
10
F
0
M
14
A
15
M
5
J
3
J
0
A
4
S
0
O
6
N
0
D
10

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

Total number of species: 15

Tuna

60 Sightings
J
0
F
9
M
0
A
16
M
4
J
0
J
0
A
0
S
5
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: 350

Damselfish

39 Sightings
J
0
F
0
M
11
A
5
M
0
J
3
J
0
A
0
S
4
O
6
N
0
D
10

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

Total number of species: 90

Goatfish

30 Sightings
J
0
F
0
M
0
A
7
M
0
J
0
J
0
A
0
S
7
O
4
N
0
D
12

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

Total number of species: 3

Trumpetfish

24 Sightings
J
0
F
0
M
0
A
15
M
0
J
0
J
0
A
3
S
0
O
6
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: 2

Nurse Shark

21 Sightings
J
0
F
9
M
0
A
8
M
0
J
0
J
0
A
0
S
0
O
4
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: 60

Squirrelfish

21 Sightings
J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
3
S
0
O
6
N
0
D
12

The best Months to dive in Rock Islands

The Rock Islands offer excellent diving conditions year-round. Water temperatures typically range from 27°C–30°C/81°F–86°F, making it comfortable for divers in every season. Visibility is usually outstanding, averaging 18–30 meters/59–98 feet, which allows for remarkable underwater experiences. Diving is possible throughout the year, but the dry season from November to April is particularly favorable due to calmer seas and minimal rainfall. Between June and August, stronger winds and currents can occur, occasionally reducing visibility and making some dive sites less accessible. However, these conditions vary, and many divers still enjoy exploring the vibrant marine life during these months.

Dive Centers

Dive Sites