Water bodies make approximately 70% of the Earth's surface and hence hold great promise for treasure hunters. Under water treasure hunting is a comparatively recent phenomenon that leaves with a whole lot of options and possibilities. From ship wrecks to inundated palaces and historic castles, under water treasure scene is truly mind boggling. However to hunt for treasures underneath the water, you should have sophisticated metal detectors and pinpointers that help you locate the treasure and water roof pouches and carry bags to carry back the collected bounty.

In addition, you will be using lift bags and ropes to bring back vestiges from under the water. Once the hidden treasure, is located the treasure hunter dives down to find it. For this you may require specific underwater metal detectors. Typically very low frequency pulse induction detectors and broad band spectrum detectors are used for under water metal detecting.

Pulse induction detectors emit electronic pulses, which are only sensitive to the metals underneath the water and no to the sand and minerals in the water. It is best suited for salt water beaches as it can be used to great depths. Normally functioning within 3 - 30 kHz range of frequency, this type of detector is sensitive to coins and jewelry among others and the best part is that it can separate precious items from trash.

Very low frequency detector could be influenced by the minerals, which in turn could affect the quality of your find. However you can adjust it to minimize the disturbances caused by signals produced by the underwater minerals.

Broad band spectrum underwater detectors on the other hand emit signals in various frequencies from 1.5 - 25 kHz. Underwater metal detectors can be used along the beach or under water and are commonly used to locate shipwrecks and for massive archeological missions as well. You can locate precious, antique relics with these gadgets that are built for heavy duty operations.

Underwater metal search is not for everyone as it is a physically exhausting task. Extreme cold and current conditions and poor visibility makes these operations risky and arduous. However the invention of scuba diving has helped a lot in unveiling the intriguing underwater world to the divers.