I recently purchased a Helix with Side Imaging. To help figure out the side imaging part of the Helix unit. I would like to know if anyone could help identify a few areas of the lake I should hit to find specific structures. I know in Milwaukee Harbor there are a few vehicles. Knowing where a structure is located (roughly) in Lake Delavan would help me practice with the side imaging. I don't what GPS coordinates, but can you give me an idea(s) where there is sunk structure on Delavan?