Sailing Directions (Planning Guides) include relevant physical, political, industrial, navigational and regulatory information about the countries adjacent to a particular ocean basin in a single volume.
Sailing Directions (Enroute) include detailed coastal and port approach information, supplementing the largest scale chart of the area. Each publication is subdivided into geographic regions, called sectors, which contain information about the coastal weather, currents, ice, dangers, features and ports, as well as a graphic key to the charts available for the area.