Shaped like a teardrop and carved out of the eastern bank of the Bush River, the UNDEX Test Facility at Aberdeen Proving Ground earned the nickname "Super Pond" for its unusual properties.
This Year's Best Combat Diver Competition Was the Toughest Yet sofrep.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sofrep.com Daily Mail and Mail on Sunday newspapers.