Stormy Seas, Golden Opportunities: Metal Detectorists Strike on Gold Coast

Erosion caused by large swells battering Gold Coast beaches has created prime conditions for metal detectorists, who say their hobby has become significantly more productive.

"Worse weather improves chances of finding items," says Josh Cavanagh, who has been making about $1,000 per month in gold and silver.

How the Weather Works in Their Favor

Josh Cavanagh, 36, from Brisbane, detects once or twice weekly and reports steady earnings. His best find to date? A one-carat diamond engagement ring worth nearly $3,000.

Greg Boreland, a Tweed local, explains the science behind the success: storms remove sand and expose heavier targets like gold and silver that normally sit too deep to detect.

Professor Anja Scheffers from Southern Cross University confirms the phenomenon, noting that severe storms can move 50 to 100 cubic meters of sand, bringing deeper sediment—and buried valuables—to the surface.

The Legal Framework

Under Queensland law, valuable jewelry must be handed to police. If the owner is not found within 90 days, the item can be returned to the finder.

A City Responds

The Gold Coast City Council, with state and federal funding, is spending $13.5 million to pump 800,000 cubic meters of sand back onto beaches. The dredge Trud-R begins operations this weekend.

Council Mayor Tom Tate said metal detectorists capitalizing on erosion is "very Gold Coast" and encouraged returning items with initials to their rightful owners.

Mixed Reactions from the Public

Not everyone approves. Mr Boreland reported being confronted by a surfer who accused him of "taking advantage of others' misfortune."

However, he also described a positive encounter: helping a woman find lost car keys at Currumbin Alley within seconds.

"Some see opportunity, others see opportunism—but for every lost ring, there's also a set of keys returned."