Tutorial - Garmin Connect Website: Export and Import Activity Data - YouTube
Garmin elevation inaccuracy - Why does every gpx I import to Garmin Connect show way more elevation gain than it should? This course off of mtbproject should be 4800 ft of gain
GitHub - pe-st/garmin-connect-export: Download a copy of your Garmin Connect data, including stats and GPX tracks.
Uploading a Third-Party Course into Garmin Connect | Garmin Customer Support
Export GPX file from a Garmin Connect Course
Garmin Fenix 6 & 7 navigation: how to easily load a GPX file