2023-10-30 00:00:00 Navigation app with digital nautical charts for boaters and commercial shipping. This app can be used as a substitute for the 1800 series paper charts of the Dutch Hydrographic Office. The DKW 1800 series are a set of digital nautical charts of the Dutch coastal waters, based on 1800 series charts from the Dutch Hydrografic Office, including weekly updates of the 'Berichten aan Zeevarenden' (BaZ) and extra depth information from the 'Wadvaarders'. Note: You can purchase the charts in the app individually or as a package.