Fishing maps

Def get chartplotter and update it . No paper map will be accurate enough to traverse that area outside of major bayous. Google earth is a good overview.

The Navionics Boating app (Garmin recently bought out Navionics) is pretty handy and has a satellite view. I think its $50/year to get the full features where you can lay down tracks and way points. You can mark a waypoint and it'll lay down a track for you to follow and flag any hazards along the way.

Idk if I would use that feature blindly but its really helpful at times.