About Who's Been Here Dive Log Revisions Lock 21 Conrwall, Ontario, Canada Max Depth: 61-70ft/19-21m Average Viz: 11-15ft/3-5m Entry Type: Shore Bottom Composition: Clay/Muck Aquatic Life: Might See Something Rating: 3.67 by 3 divers Spring: 50-55°F/10-13°C Summer: 66-70°F/19-21°C Fall: 56-60°F/13-16°C Winter: Under 50°F/10°C lerpy: Avg Viz: 5-10ft/2-3m. Water Temp: 61-65°F/16-18°C. 9/22/2013 lerpy: Avg Viz: 5-10ft/2-3m. Water Temp: 71-75°F/22-24°C. 8/03/2012 8/25/2008 5:00 PM

Lock 21 is a shore accessible fresh water dive site, located in Conrwall, Ontario, Canada. This dive site has an average rating of 3.67 out of 5 from 3 scuba divers. The maximum depth is 61-70ft/19-21m. The average visibility is 11-15ft/3-5m.

Lock 21 was built in 1885-86 as part of the second enlargement of the old St. Lawrence River canal system. More information: http://www.saveontarioshipwrecks.on.ca/Diverguides/dguide2.html Brought to you by Ontario Underwater Council: http://www.underwatercouncil.com/

Comments

lerpy - 12/03/2013 7:30 AM I went scuba diving here on 9/22/2013. Average viz: 5-10ft/2-3m. Water temp: 61-65°F/16-18°C.