The geocaching world is rich with it's own language, terminology and acronyms. When starting out with this game there is quite a steep learning curve to understand the way other players talk and write about the caches they place and hide. However; it doesn't take too long for the lingo to stick and you will soon be at GZ with your GPSR looking at the BOT hoping that you don't DNF the nano!
A term often reserved for caches that are hidden well away from a main trail and will likely involve navigation through bushes and undergrowth to find the cache.
This walking trail is a mix of (mainly) hard packed surfaces and small sections of sandy track.