Navionics Plus. All-in-one max detailed cartography for marine and lakes, the perfect choice for cruising and fishing. Navionics+ offers 1 ft HD contours on any body of water and millions of updates from either official sources or contributions from boaters like you, downloadable daily - even from your boat! Now with new advanced features. Includes more than 20,000 lakes. Enhance SonarChart™ with sonar logs you collect using a plotter or mobile device. Includes one year of Freshest Data updates to Nautical Chart, SonarChart™ and Community Edits.
Freshwater: One foot contours; 18,000 lakes and growing
Saltwater and the Great Lakes: One foot contours inshore and nearshore; 3' and 6' contours offshore beyond 90'
Huge regions - the most detail