A kayaker and a paddle boarder were involved in terrifying great white shark attacks off the coast of Santa Barbara Thursday.

"The first thing I saw was its nose .. bite .. jaw coming right at me!" said kayaker Brett Zodtner Jackson, whose kayak was attacked about a quarter of a mile off the beach. "It grabbed me and then it drove me sideways, flipped me over .. ended up on the bottom of the kayak which was out of water."

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The shark bit Jackson’s kayak, leaving a 15-inch diameter bite mark, according to City of Santa Barbara Harbor Patrol. Although shaken, Jackson was unharmed in the incident, and swam about 30 yards to an anchored boat.

A paddle boarder had a similar scare just hours earlier near Santa Barbara’s Goleta Beach. County Park Rangers confirmed that an 8-foot Great White bit the nose and rail off a paddleboard, knocking a man into the water. Like Jackson, the man was also unhurt.

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City of Santa Barbara beaches posted a 48-hour shark advisory Thursday.

Earlier this month the beaches of a popular surfing community in Santa Cruz, Calif. were partially shut down after a shark attacked a kayak.