10 May 2015
A travel bug is something that moves from a cache to a cache. You, as the geocacher picks up travel bugs and moves it to other caches, making them move.
Some caches are big in size so they can store travel bugs. Others are small and cannot do so.
My travel bug, the business man, has been on the move for many years now. It is currently missing, but I hope it will reappear somewhere soon.