A marine search is underway for a 73-year-old fisherman who has not been seen for four days.
The alarm was raised with police just before 8pm on Sunday after Terry Jennings' car and trailer were still seen sitting at Gnarabup boat ramp carpark.
"Concerns are held for his welfare due to unfavourable boating weather and the length of time the vehicle and trailer have been left in the carpark," a WA Police spokesperson said.
Police have released CCTV footage of a person seen talking with Mr Jennings at 8.15am on Thursday, March 31.
It's believed that person may have information that can assist police.
The person talking to Mr Jennings, or anyone with any information relating to his whereabouts, is urged to contact Margaret River Police on 9757 8600 or Crime Stoppers on 1800 333 000.
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