Types of Metal Detecting Activities, page 7:
WW2 MILITARY RELIC HUNTING
General Information, Tips and Metal Detectors Required
(CONTINUED from previous page)
Searching the river beds, creeks and even small brooks for WW2 relics has been proved to be very productive over years. After the World War II was over, large amounts of small field weapons, firearms and ammunition were discarded into the water streams instead of being transported to the armories during the military cleanup operations. During the war, a lot of weaponry was also lost to the waterways while being transported or during the crossings. This is when the strong magnets come in handy for non-electronic search. For electronic underwater relic hunting, the underwater metal detectors are widely used.
Underwater WW2 Relic Hunting with Minelab Excalibur
WW2 Relic Hunting also includes searching for military machinery - tanks, armoured vehicles, jeeps, small planes and jet fighters, large cannons, etc. - all in their complete forms. This type of search takes place in the remote areas that are most difficult to access - large marshes and swamps, and also in lakes and rivers. To locate large objects at great depths, Treasure Hunting Systems such as Ground Penetrating Locators, Magnetometers and Boat-Towed Side-Scan Sonars are used.
It Might Be Exciting to Find a Tank!
I Happened to Come Across Three Modern Tanks while Scouting for Hunt Sites! :)