Finding interesting dive locations for my ROV, using a downrigger

How i scan large areas of the bottom for interesting dive locations. Downrigger, Underwater Camera, GPS logger

[@robhalcro6110]

Great ideas Peter , I'm going to have to set up a system like yours in the Lake Huron , Michigan . What type of bottom sonar system is that ?

[@petleh82]

Very nice, I looked online on Lake Huron, seams to be very similar to Lake Vättern where i am, a lot of the fish species are the same, and it looks like water is also clear ! The sonar i have is a Humminbird Helix 9 CHIRP MEGA SI GPS G2N, it have megahertz side imaging so that i can see pretty good whats on the bottom, but a camera can see a lot more, fishing lures and dropped smaller objects, etc..