UPDATE 2: The condition of Jacob Trette has been upgraded to fair. His vitals are stable and within normal limits. He is conscious but may be uncomfortable.
UPDATE: The injured surfer, whose name is Jacob Trette, is still in critical condition this afternoon
Surfer Jeff Clark witnessed the accident.
"I was out there watching things go down," Clark said.
"It was a big set that caught everybody, and he just happened to be in a really bad place," he said.
Clark said fellow surfers and kayakers managed to get Trette to shore and prop him on his side to drain his airway.
"It was the guys out there who got him and knew what to do," Clark said.
The surfer, who is about 30 years old, was found face down in the water by someone who was nearby and took him to shore, Delay said.
The man was not breathing and was unresponsive, but quick thinking rescuers helped turn him on his side, and clear his airway. Emergency workers responded shortly after, and were able to revive him with CPR.
The surfer was taken to to Stanford by helicopter and is reported to be in critical condition.