Ross Martin was out paddleboarding with wife Amy on Tuesday, September 7, when they spotted a mass of seaweed below the water.
Amy, 39, said: “I paddled closer and realised that the shape was that of a ship’s helm.”
Ross, 40, a wedding photographer, paddled back and grabbed his drone to see it from above.
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Amy added: “It was really close to shore right in the middle of the bay.”