V1 WS NORTHBOUND IN THE ATLANTIC OCEAN FROM OFF SHORE ALONG THE BEACH OFF PALM BEACH SOUTH OF THE LAKE WORTH INLET.  V1 THEN STRUCK THE SOUTH JETTY 548 FEET FROM THE EAST END OF JETTY, CAUSING V1 TO GO AIRBORNE UP ONTO THE ROCKS, COMING TO REST ON THE JETTY ITSELF.  V1 OPERATOR ADVISED THAT HE DIDN'T SEE THE JETTY AND WAS LOOKING FOR THE INLET ITSELF AND BECAME CONFUSED AND DIDN'T SEE THE ROCKS UNTIL IT WAS TOO LATE.
PALM BEACH                    