BlueChart g3 Vision HD Bay of Biscay microSD/SD Coverage From Binic, France to Cabo Finisterre, Spain. Premier Coastal Charts Industry-leading coverage, clarity and detail with updated coastal charts that feature integrated Garmin and Navionics content Auto Guidance technology quickly calculates a suggested route by using your desired depth and overhead clearance Includes Depth Range Shading for up to 10 depth ranges, enabling you to view your target depth at a glance Up to 1’ contours provide a more accurate depiction of the bottom structure for improved fishing charts To give a clear picture of shallow waters to avoid, the Shallow Water Shading allows for shading at a user-defined depth Experience unparalleled coverage and brilliant detail when you’re on the water. BlueChart g3 Vision coastal charts provide industry-leading coverage, clarity and detail with integrated Garmin and Navionics content. Auto Guidance Whether you are fishing or cruising, select a spot, and get a route showing you the general path and nearby obstructions at a safe depth1.