Boat safer and savor every moment on the water! All-in-one max detailed cartography for marine and lakes makes Navionics+ the perfect choice for cruising, sailing and fishing. Get the most accurate navigational data, an exclusive 0.5 m HD bathymetry map which is enhanced by boaters like you, and unique local content shared by Navionics app users. Daily updates and advanced features are included for one year.Please refer to Navionics website for product details at www.navionics.com