US Powerboating Navigation Cardinal Marks, Buoys, Daymarks IALA-A and IALA-B.

Garmin g2 BlueCharts - Charleston - Jacksonville BlueChart g2 technology offers all of the details of a traditional BlueChart with added enhancements like an optional 3D perspective tides and currents overlay and general coastal road detail. Other chart features include marine service information shaded depth contours and improved IALA navigational symbols. Also available in extra large or bathymetric fishing charts. Please note: Bluechart g2 technology is not compatible with earlier generation Garmin chart plotters.