Crews responded around 9 a.m. to Point Reyes' South Beach on reports of someone swept into the water and were able to find the male victim and airlift him back to shore, but he was pronounced dead shortly after 10 a.m., fire officials said.
His name was not immediately available.
The National Park Service is the lead agency investigating the death. Other agencies who responded with watercraft or helicopters included the California Highway Patrol, U.S. Coast Guard, Marin County Sheriff's Office and Sonoma County firefighters and sheriff's deputies.