Hi,
I got a Fenix 5x to help me with a grand canyon trip. I wanted to do something similar to what was done in this article.
https://patrickbrown.org/2014/03/22/proximity-waypoints-in-the-grand-canyon/
Every time I tried to load the wave points (file attached) into Garmin Connect, I would get the following error "GPX wave points are unable to upload into Garmin Connect."
wave point files.
http://www.rivermaps.net/waypoints%20-%20entry.html
Best,
Jared