MicroSD card of nautical chart data covering Southeast Alaska and Canadian waters. From Garmin website:.

　　BlueChart g2 aquatic maps showcase crisp identifying and a total smoother.

　　discussion on your chartplotter display.

　　In addition to the fundamental charts, tidal stations, currents, depth shapes,.

　　IALA signs and included fishing charts, BlueChart g2 offers enhanced.

　　transitioning between zoom levels and even more seamless connection throughout.

　　chart limits.

　　Practical navigation functions revealing everything from shaded depth.

　　contours and coastlines to find soundings, navaids, port plans, wrecks,.

　　blockages, intertidal zones, limited areas, IALA symbols and even more.

　　Presently costing $109 on Amazon.