Police said the man, believed to be between 60- and 70-years-old, was found Nov. 12 near the train tracks that run along San Clemente State Beach.
The blue-eyed, Caucasian man was 5 feet, 8 inches tall and weighed 168 pounds. He had short, blondish-grey hair.
The deceased was found wearing two black, long-sleeved shirts and dark blue Tek-Gear athletic shorts with a black stripe on the sides.
His body showed evidence of a prior prostate surgery.
Coroner investigators have not been able to identify the man through fingerprint databases or by reviewing missing persons’ reports.
The cause of death was not released.
Anyone with information is asked to call the Orange County Coroner’s Division at (714) 647-7411.