Originally Posted by Steve B.

Garmin Connect let's you import tcx files, so I think you can add courses from RideWithGPS. Not sure if you can create a new Garmin course from an imported file though, I'd have to check that, never done it. Obviously you would need WiFi and internet to access Connect, but once you create a course in Connect, it's immedialty available to a smartphone or tablet with data or internet (via the Garmin Mobile app). Then it's a simple BlueTooth download from the smartphone or tablet to the Garmin device, no USB or cable needed. I use this feature all the time, it's great.