This is the map interface to a set of tools that will generate GPS .gpx files for a set of selected waypoints. By zooming in to your area of interest and clicking twice on this map, you define a rectangle. All the Aids to Navigation markers within that rectangle will be displayed along with a list of the charts that have overlap your rectangle. You can follow the link to the chart list, or use the list showing only the aids within your rectangle. Check the aids you want to become waypoints and then click the submit button. You will then be on the bulk waypoint and route editor. Once you rename your waypoints as desired, you can use those names to create routes in your gps for your desired courses. When you are finished, click the submit button and a .gpx file will be downloaded to your computer. If you click in error, just click twice again, only the last two clicks count.