Nessie has been recorded more than 500ft below the surface of the loch.Monster hunters are astounded by the clarity of the image of an object, estimated to be 33ft long – although an expert said it may just be a shoal of fish.The sonar image was captured by Cruise Loch Ness director Ronald Mackenzie while he was skippering a catamaran on Wednesday afternoon.The 49-year-old said: “It was a bit of a dreich day and we only had 12 passengers.
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