Upload a trail from your Garmin to Wikiloc (Garmin Connect manually)
New: Upload trails automatically from Garmin to Wikiloc (Garmin Connect)
When you finish recording your activity with your Garmin device and synced to Garmin Connect, log in to Garmin Connect on the web and export the GPX version of your activity.
Once you have the file in GPX format, you can upload it to your Wikiloc account by following these steps (web) or these others (app)