With advanced features like 3D views above and below the waterline, Garmins BlueChart g2 Vision HD cartography will give you peace of mind exploring unfamiliar waters.Garmin BlueChart g2 Vision HD microSD cards give you quality coverage of your selected area and many exciting features to give you total navigating confidence.3D Viewing allows you to see both a Mariner's Eye view above the water and a Fish Eye view beneath it.Auto-guidance technology gives you the safest route to your destination.Aerial photography is constantly updated and provides a real-life view of the area.Detailed cartography that doesn't stop at the water's edge will give you valuable information about the bottom landscape and navigational landmarks to keep you and your boat safe.Bathymetric data gives you a clear view of what's under your boat and increases your situational awareness while on the water. It also feeds the 3D Fish Eye view feature.CoverageThe Baltic Sea coasts of Germany, Poland, Russia, Lithuania, Latvia and Estonia from Rügen, Germany to Narva-Jõesuu, Estonia; The entire Gulf of RigaIncludes: The Szczecin Lagoon; The Vistula Lagoon; Bornholm; Gotland; Saaremaa; Hiiumaa; Lake Peipus; The Emajõgi River; The Mazurian District Lakes Lake Jeziorak, Lake x81aÅ„skie and Lake Ã…Å¡niardwy.Ports included: Gydnia; KaliningradKey FeaturesPrecision and Accuracy: View the exact position of your vessel, detailed coastal features, anchorages, obstructions, waterways, tidal stations, currents and contours so you will always know precisely where you are and where you want to go.Fishing Features: In addition to fishing charts, detailed imagery of the marine landscape and contours drawn from bathymetric maps, BlueChart g2 Vision HD cards have an exciting 3D Fish Eye view feature. Using information from the surrounding contours, you can check out the view below the waterline as if you were really there! You can use this to locate fish hiding places or just pretend you are a fish (up to you).3D Viewing: 3D