The chart can be viewed with different options.
All options show ports worldwide ordered by priority i.e. at each zoom scale the most important ports are displayed allowing easy orientation on the chart.
Standard
Be default the standard view shows a shipping focused map with information about sea areas, port area names, countries and states.
Terrain
The terrain view is using raster charts and shows geographic information.
Satellite
On the satellite view satellite images can be viewed to easily identify e.g. port facilites.
