GPX (.gpx) files that contain waypoints can be created in Garmin MapSource, then loaded as custom POIs (Points of Interest) on compatible Garmin devices using Points of Interest (POI) Loader.

Note: Garmin MapSource is only compatible with Windows PCs. If your computer is a Mac, see Related Content below for other methods to create a custom POI file.

To create a .gpx file using MapSource:

Install and open MapSource
Create a waypoint using the Waypoint Tool, the Find feature, or by right-clicking on the map
In the Waypoint Properties dialog box, enter information in the appropriate fields as needed:

Name: the name of the waypoint, as well as speed alert information if desired
Proximity: to create a proximity alert here, uncheck the Unknown box and enter the desired distance for the alert
Comment: enter a description of the waypoint if desired
File/URL: browse to and select the file or directory you wish to associate with the POIs in this file, including custom icons and .mp3 audio files

Click OK
Repeat steps 2-4 as needed for the waypoints you wish to save
Select File, then Save As
Select the desired save location of the waypoint(s)
Enter a file name

If no numbers were entered in the name field in step 3, POI Loader will consider any numbers entered in this step to be speed alert information

From the Save As Type drop-down list, select GPS eXchange Format (*.gpx)
Click Save

Note: Speed and proximity alert information entered in step 3 will override any other speed or proximity alert information in the file name, such as in step 8, or manually entered into POI Loader.

After saving the .gpx file, use POI Loader to locate and export this file to your device.

You can also open existing MapSource files containing saved waypoints and save them as .gpx files.