Bio Rock

★★★★☆ (646)

Bio Rock is an artificial reef with weak electrical currents flowing through its conduits to promote the growth of coral seedlings. Located off the coast of Koh Tao, opposite the Japanese Garden, this unique dive site is something truly special that Koh Tao has to offer.

You can see many coral fish such as butterfly fish, bannerfish, anemone fish and parrot fish. There are many corals growing on the structure itself, as well as along the coast.

Dive Activity

Top Wildlife Sightings

Wildlife Sightings are Based on User Generated Content

Moray Eel

28 Sightings
J
3
F
2
M
5
A
0
M
0
J
0
J
0
A
8
S
0
O
0
N
4
D
6

Green Turtle

18 Sightings
J
2
F
0
M
2
A
0
M
0
J
0
J
0
A
7
S
0
O
4
N
0
D
3

Octopus

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

Lionfish

51 Sightings
J
3
F
3
M
8
A
0
M
0
J
1
J
0
A
13
S
5
O
4
N
6
D
8

Clownfish

34 Sightings
J
3
F
2
M
9
A
0
M
0
J
1
J
3
A
0
S
4
O
6
N
3
D
3

Pufferfish

33 Sightings
J
2
F
2
M
4
A
0
M
0
J
1
J
0
A
8
S
5
O
5
N
0
D
6

Butterfly Fish

19 Sightings
J
3
F
0
M
7
A
0
M
0
J
1
J
0
A
0
S
0
O
5
N
0
D
3

Angelfish

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

Triggerfish

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

Parrotfish

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