Navionics+ NAV+NI: Preprogrammed with All US & Canada - Marine & LakesMarine and lake chartsOne foot contours inshore and nearshore21,000 lakes and growingDaily updates and advanced features for one yearBoat safer and fish smarter. Max-detailed cartography for marine and lakes that is updated daily, makes Navionics+ the perfect choice for cruising and fishing. Get Nautical Chart, the most accurate navigational data; SonarChartâ„¢, an exclusive 1 ft HD bathymetry map; and Community Edits, local content from the community. Daily updates and advanced features are included for one year. Simply plug your card into your PC/Mac and register at navionics.com. USB reader provided. Preloaded with Nautical Chart; SonarChartâ„¢ & Community Edits are downloadable. Enjoy advanced features: SonarChartâ„¢ Live, Advanced Map Options and Plotter Sync. Enhance SonarChartâ„¢ with sonar logs you collect. Check compatibility at navionics.com.