© Scuba Guam, 96913 Tamuning
Boulder Alley
★★★★☆
(120)
This is a great night dive location with super-clear water. Drift along the cliff line between the Navy sea wall and Shark’s Pit. Large schools of pyramid butterfly fish can be seen, along with the occasional Pelagic
A large school of Pyramid Butterfly Fish can be seen at the west-end of this drift dive. Turtles are seen on most dives.
Dive Activity
Potential Wildlife Sightings
Wildlife Sightings are Based on User Generated Content
Shutterstock-Shane Myers Photography
18 Sightings
J
4
F
5
M
0
A
0
M
1
J
2
J
0
A
1
S
0
O
1
N
2
D
2
The image shown is a representative illustration and does not depict every individual animal in this category.
Total number of species: 200
Alamy-WaterFrame
Moray Eel
4 Sightings
J
2
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
1
O
0
N
1
D
0
Shutterstock-Ed Jenkins
Hawksbill Turtle
3 Sightings
J
0
F
0
M
0
A
0
M
0
J
1
J
0
A
0
S
0
O
1
N
1
D
0
The image shown is a representative illustration and does not depict every individual animal in this category.
Total number of species: 300
Alamy/Reinhard Dirscherl
Octopus
2 Sightings
J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
1
O
1
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: 27
iStock-Global_Pics
Barracuda
1 Sightings
J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
0
D
1
The image shown is a representative illustration and does not depict every individual animal in this category.
Total number of species: 600
iStock/ultramarinfoto
Wrasse
1 Sightings
J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
0
D
1
The image shown is a representative illustration and does not depict every individual animal in this category.
Total number of species: 12
iStock/cinoby
Lionfish
15 Sightings
J
3
F
3
M
0
A
2
M
0
J
0
J
0
A
1
S
0
O
3
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: 90
Shutterstock-Rich Carey
Angelfish
6 Sightings
J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
2
O
2
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: 40
iStock-wrangel
Triggerfish
6 Sightings
J
0
F
0
M
1
A
2
M
0
J
0
J
0
A
0
S
0
O
2
N
0
D
1
AdobeStock-Nikolai Sorokin
Blacktip Reef Shark
3 Sightings
J
0
F
0
M
0
A
1
M
0
J
2
J
0
A
0
S
0
O
0
N
0
D
0
