Navigate off shore with confidence. This micro SD card provides you with electronic nautical charts for your compatible Garmin GPS chartplotter. Includes information for the US, Canada, South America, the Caribbean, the eastern coast of Mexico and more. Features shaded depth contours, data on intertidal zones, port plans and information regarding tides, wrecks, restricted areas and anchorages. When you purchase this micro SD card, you'll have access to one region of your choice. Follow the instructions on the certificate to unlock one region, then download the map to a blank data card or compatible Garmin GPS. You can reprogram the card whenever you want by simply downloading a different area. Imported.... » read more