Navionics Updates Global Regions Marine and Lake Charts on SD/MSD All the contents of Navionics Plus at half the price. Just use an old card to activate it. Max detailed charts for cruising, fishing and sailing. Choose your coverage area and get marine areas and lakes charts all on one card. Get the most current charts every day with daily updates for one year. Includes SonarChartTM 1 foot/0.5 m HD bathymetry map that reflects ever changing conditions, and Community Edits, valuable local information added by millions of Navionics Boating app users.