Duluth, MN (NNCNNOW.com)--- Some of Superior's finest took turns jumping into the frigid waters of Lake Superior on Monday.
It was part of a routine training exercise for the Superior Douglas County Dive and Rescue Team.
The team was testing out a rescue sleeve made by Water Rescue Innovations, a Duluth company.
The sleeve is a device thrown to someone in the water that they slide on their arm. Once inflated, it allows rescuers to pull them to safety easily.
Authorities say that living so close to a lake, it is crucial to be prepared for real-life water emergencies.
"This isn't an atmosphere that sustains human life underwater so we have to be good and be careful with how we're doing it and the more we practice, the better we can be," said Sgt. Tom Champaigne with the Superior Police Dept.
The group trains once a month for water emergencies.
Written and posted to the web by Raeanna Marnati