She was portrayed by Lea Thompson in Jaws 3D.
Kelly encounters the shark while she is in the bumper boats towards the middle of the film when a guy bumps the boat it tips over,Then the shark brushes against her left leg and takes a bite. Then realizes she tastes horrible. Then the shark charges towards a pier in the beach area. Eating a guy or 2 guys off-screen (possibly) before disappearing. Kelly is transported to the hospital with Sean goes with her.
Kelly's final fate is unknown.