Ideal for navigation onboard of your sailing yacht, motorship, canoe or longboat on the Dutch coastal waters. This app includes : - the DKW 1800 series Complete: very detailed water charts of the Dutch Waddensea, North Sea coast, IJsselmeer and Zeeland, produced by the Dutch Hydrographic Service. - weekly updates of the messages to marines for up-to-date depths and buoyage during the year 2023. - waypoints of the depth marks at the Waddensea, ideal for calculating when to cross shallow waters. With this app you can: - always know where you are, how fast you go and what your course is using a GPS receiver (internal or Bluetooth). - place a navigation waypoint and sail to your destination using the course line, Course to Go and Distance to Go. - view your sailed track on the chart. - show the distance circles around your GPS position. - show the chart borders, containing information such as the legend and scale information. By purchasing this app, the DKW 1800 series charts will be connected to your Stentec account. You can update and use these charts for navigation during the year 2023.