JEFFERSON COUNTY, Colo. (CBS4)– West Metro Fire and Rescue crews took a camera with them during Tuesday’s underwater training session.

Divers plunged into the freezing water below six inches of ice at Big Soda Lake in Bear Creek State Park.

(credit: West Metro Fire Rescue)

(credit: West Metro Fire Rescue)

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Divers tested the ice above their heads.

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Crews from West Metro also joined crews from South Metro, Thornton and Westminster.

Underwater training for West Metro Fire Rescue (credit: West Metro Fire Rescue)

Underwater training for West Metro Fire Rescue (credit: West Metro Fire Rescue)

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Those firefighters get called out to search for everything from dogs in the water to checking abandoned cars submerged in urban waterways.

(credit: West Metro Fire Rescue)

(credit: West Metro Fire Rescue)