I depend on my electronics as much in shallow water as I do in deep-water. I often encounter algae blooms in the shallows especially when waters are calm and surface water temps. rise. It doesn’t matter if I’m fishing bass in freshwater or searching saltwater flats for depressions and grass beds for sea trout, I depend on my Raymarine fishfinder equipped with C-MAP charts and CHIRP DownVision to clearly show me my location and what I am dealing with on the bottom.
Here is a good screen-grab while I was cruising the flats in search of sea-grass just of the really shallow water to locate Spotted Sea Trout.
Even in real shallow water the Raymarine shines and gives me all the detail I need to locate fish holding areas.