Lock 21
★★★★☆
(130)
Lock 21 is an exciting and unique dive where you get to go back in time and dive a 19th century submerged Victorian canal lock on the St. Lawrence River. This dive can have strong currents and is best done by experienced divers.
This dive is more for the historical significance than anything else but you’ll most likely see some bass, trout, and catfish swimming around.
Dive Activity & Environmental Conditions
Top Wildlife Sightings
Most frequently spotted marine life based on dive logs
#1
Bass
30
Total Sightings
J
F
M
A
M
J
J
A
S
O
N
D
#2
Carp
13
Total Sightings
J
F
M
A
M
J
J
A
S
O
N
D
#3
Loach Goby
8
Total Sightings
J
F
M
A
M
J
J
A
S
O
N
D
#4
Walleye
4
Total Sightings
J
F
M
A
M
J
J
A
S
O
N
D
#5
Trout
3
Total Sightings
J
F
M
A
M
J
J
A
S
O
N
D
#6
Pike
2
Total Sightings
J
F
M
A
M
J
J
A
S
O
N
D
#7
Burbot
2
Total Sightings
J
F
M
A
M
J
J
A
S
O
N
D
#8
European Bullhead
2
Total Sightings
J
F
M
A
M
J
J
A
S
O
N
D
#9
Stickleback
2
Total Sightings
J
F
M
A
M
J
J
A
S
O
N
D
