A Canadian driver following her car's sat nav ended up driving into a lake on Thursday evening.
The 23-year-old woman, from Ontario, was driving in foggy conditions when she took a wrong turn and drove down a steep boat launch into Lake Huron.
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Constable Katrina Rubinstein-Gilbert told the Canadian Press that driving conditions were troublesome, with rain and fog making visibility difficult.
"How the launch works, it's not an airborne thing," she explained. "It's not 'Dukes of Hazzard.' It kind of goes off the road and the launch just drops all of a sudden.
"So she would have been driving on the road, and then all of a sudden just dropped and hit water."
She added that alcohol consumption was not a factor and there are no charges pending.
Const. Rubinstein-Gilbert said the motorist was in "good spirits" but a "little embarrassed".
She was able to roll down her window, grab her handbag and swim 30 metres to safety as her car filled with water.