Due to the high updraft winds, messengers such as Amy and her friends make use of lightweight personal gliders to travel different parts of Gargantia or to other ships. These are non-powered vehicles and are able to carry up to two people or an equivalent amount of extra weight.
When not in use, the gliders are folded up in a small backpack. To use them, one must spread the wings and jump off a high enough perch to catch an updraft. Amy in particular tends to jump first, then spread the wings.