Navionics Updates World Choose your coverage area on line Marine and lake charts Contours up to 1 ft/0.5 m Daily updates Get both saltwater and freshwater charts throughout the entire region chosen. Download Nautical Chart, SonarChart 1 ft/0.5 m HD bathymetry map and Community Edits along with daily updates for one year! Simply plug your card into your PC/Mac to get the most updated charts from navionics.com. Choose from: Africa & Middle East; Australia & New Zealand; Baltic Sea; Caribbean & South America; Central & West Europe; China Sea & Japan; Greenland & Iceland; Indian Ocean & S. China Sea; Mediterranean & Black Sea; Norway; Pacific Islands; Russia West; Skagerrak & Kattegat; UK, Ireland & Holland; US & Canada. 2 GB card and USB reader included. Enhance SonarChart with sonar logs you collect using a plotter or mobile device. Includes one year of daily updates to Nautical Chart, SonarChart and Community Edits. Check compatibility at navionics.com, which is continuously updated.