I live in Indiana and want to search in a lake with about 10ft of water and then lots of clay muck. Is there a certain inconspicouos dredging technique to use from a small fishing boat? Cameras would probably not work due to the clouding of the water. I am mostly looking for coins, billfolds, watches, rings lost over about 25 years. As far as I know the bottom areas I am interested in have not been disturbed for the entire 25 years, but LOTS of people have had an opportunity to lose thier valuable from above - and never had a chance to retrieve them.
Excal 1000, Excal II, Sovereign GT, CZ-20, Tiger Shark, Tejon, GTI 1500, Surfmaster Pulse, CZ6a, DFX, AT PRO, Fisher 1235, Surf PI Pro, 1280-X, many more because I enjoy learning them. New Garrett Ca