Lock 21

Ontario, Canada

Depth

18m

Visibility

10m - 30m

Entry

Shore

Experience Level

Advanced

About Lock 21

This site consists of a easy accessible lock that was submerged in the creation of the St Lawrence seaway in 1885. This lock was going to be the second largest canal enlargement for the seaway canal but instead, was scattered. It makes a great dive with abundant marine life. This site is recommended for advanced divers due to the depth.

Lock 21 Dive Info

Terrain & Features

Drift, Other, Inland

Entry Type

Shore

Max Depth

18m

Visibility Range

10m – 30m

Experience Level

Advanced

Best Gas

21% – 50%

O₂

Marine Life

Cabezon
Catfish
Lingcod
Greenlings
Sunfish

Weather Conditions

Weather information for Lock 21 coming soon.

Dive Operators near Lock 21

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Dive Site Hazards

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