I have the Descent G1 and apparently "Ice Skating" isn't an entirely supported activity.
It's a bit strange because I can start it as another activity, "Walk" for example. And then after I can change the saved activity to "Ice Skating". And it gives me the nice ice skating icon. But it's a bit of a pain having to do this every time. I just want to start the activity as Ice Skating. I realize I could just copy another activity and rename it, and live with the incorrect icon, but I don't see why I should need to since pretty much all other Garmin watches support it, and the Decent G1 sort-of does with the workaround.