Chelsea Alfson, a resident of Fairfield, Montana, got a little more that she bargained for while fishing on Lake Frances in Glacier National Park.

On Saturday, she witnessed two grizzly bears swimming in the middle of the lake while she was out on a fishing boat.

Grizzly Bear sightings are fairly common in Glacier National Park, but seeing two of them swimming across a lake is pretty rare. Since posting the video on her Facebook page on Saturday, Chelsea has received a good amount of national attention.

Watch the video below:

WARNING: Some language in the video is NSFW.

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