Holy **** You Won't Believe What We Found Deep Underwater in The River!!! ( Magnet Fishing) - YouTube
Magnet Fishing
Fishing Magnet (Double-Sided Magnetic) 600LBS Pulling Force Rare Earth Neodymium Magnet with Eyebolt Diameter 2.36 inch (60mm) Superior Magnetics for Underwater Salvage, Retrieval and Recovery: Amazon.com: Industrial & Scientific
US 500lb Double Sided Fishing Magnet Super Strong Neodymium Underwater Salvage | eBay
Large High-Strength 300 lbs. Heavy-duty Underwater Retrieving Magnets - Magnets By HSMAG
RC Fishing Magnet Set - 1225lb Double Sided Fishing Magnet with Rope and Gloves - Walmart.com