||High resolution satellite imagery, when overlaid on the chart, provides the mariner with unparalleled situational awareness. Aerial reference photography provides real world photos of ports, harbors, marinas, waterways, navigation landmarks and other points of interest, offering the mariner another powerful tool for navigating unfamiliar waters. Mariner Eye View perspective provides a bird eye view from behind the boat showing the chart information for a quick, reliable and easy position fix. Fish Eye View 3D perspective provides an underwater view that visually represents the sea floor according to the chart's information. Auto Guidance technology searches chart data to suggest the best passage to a destination. Fishing charts allow the mariner to hide navigation data from the SD card while leaving the bottom contours and depth soundings for their next fishing adventure. Includes tides, currents, marine services, coastal roads and points of interest. Detailed BlueChart g2 maps are included on the card to supplement the maps on your chartplotter. Coverage: Detailed coverage of the Northern portion of the Gulf of Bothnia from Umea, Sweden to Vassa, Finland;Coverage includes lakes Tjeggelvas, Hornavan, Uddjaur, Aisjaur, Fluka, and Storavan in Sweden; Also includes detailed coverage of the cities of Pietarsaari and Oulu in Finland and Lulea and Happaranda in Sweden, and the islands of Vallgrund and Hailuoto.