A mother and daughter kayaking in Avila Beach along the coast of California get a surprise from a 30-ton humpback whale when it surfaces within just a few feet of their boats. You can tell the women are surprised from their screams (be sure to keep the volume low on this one).

"I quit filming it because the whale was still moving forward and it ran into me," the daughter writes, adding she was forced to stop filming and paddle backwards before her kayak tipped over.

Luckily, besides the threat of the boat being overturned by the breaching whale, these giant marine mammals only eat krill and small fish and aren't known to attack humans.

Filed under: North America, United States, Video