Watching big waves roll in on the Central Coast can be exhilarating and dangerous… As one man found out first-hand yesterday morning. First responders received a report of a man being knocked off the north jetty on the south side of Morro Rock at around 9:40 a.m… In the few minutes it took Harbor Patrol officers to arrive on scene, two bystanders had gotten the man back to shore. He was transported to an area hospital and treated for a head injury.