During the spring and summer most of their food grows underwater. They have been observed diving 18 feet under water to reach succulent plants on the bottom of a pond!
http://www.fws.gov/Midwest/Agassiz/moosesite/B8164/1996...
7 The intent of the regulation is to ensure that underwater bridge inspection divers have comprehensive training, which years of experience alone do not necessarily provide. There are several ways to satisfy the training requirements:
http://www.fhwa.dot.gov/bridge/nbis/index.htm
Though seals avoid people on land, they have never been afraid of divers in water, finding them amusingly slow and clumsy. Divers love seals, enjoy their antics and certainly wish them no harm. Every experienced diver has a story about a se...
http://www.friendsofthechildrenspool.com/HarborSealQuiz...
Omni Divers Underwater Services, L.L.C. does not sell, trade, or rent your personal information to others except to companies providing Omni Divers Underwater Services, L.L.C. membership benefits. As a Omni Divers Underwater Services, L.L.C...
http://www.omnidivers.com/privacy.html
It can be if you know the diver. You can talk through your reg to someone close but it's a mumble. There are full face masks that allow diver to diver and diver to surface comms but they're pricey. For Commercial divers, most helmets allow ...
http://answers.yahoo.com/question/index?qid=20080621195...
Wrecks are a special issue. Wreck photography is considered the most difficult branch of underwater photography. Since You use fisheye-lenses You get a 180 degree perspective and have to use 2 strobes for perfect illumination, so a lot of b...
http://askthephotographer.com/2008/03/25/going-to-the-d...
Working with our partner, Professional Association of Diving Instructors (PADI), several underwater cleanups are conducted every year in Virginia. Underwater Cleanups are organized by Project AWARE (a project of PADI). Are you a scuba div...
http://www.longwood.edu/cleanva/iccfaqs.htm