There been a couple of post on the GIS Education Community Blog using Explorer for visualizing GPS tracks taken while paragliding. The first post uses data from a flight from Mount Herman, near Colorado Springs.

The second post shows what seems to be a daring glide from the Alyeska Ski Resort near the Cook Inlet in Alaska.

Data from both is intended to provide a lesson in GPS tracking and visualization, and is available at the ArcLessons Web site.