Export Strava activities in bulk for Garmin Connect - Zean Qin
Download Strava Activity GPX Without Being Premium Member. - YouTube
How I use Strava Route Builder to put courses on my Garmin Fenix 5X - YouTube
Managing .fit files in Garmin Connect & Strava
Syncing Strava Routes to your Garmin Device – Strava Support
GitHub - ZeanQin/strava-activities-bulk-exporter-for-garmin-connect: Export all activities in your Strava account to gpx files that can then be imported to Garmin Connect.