Cold Forces Duck Boats Back Into Hibernation

BOSTON (CBS) -- They were back for the weekend but the return of winter is forcing the duck boats back into hibernation.

The popular tours were cancelled Monday, including a trip on the water for 700 Boston Public School students.

The ducks could also be closed down Tuesday and Wednesday because of the weather.

This is the duck tour's 20th year in Boston. They say they've never started a season as late as this year.

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