When you approach the cache, you might some see some concrete stairs leading up into the abyss. Make of this information what you want ;)
the cache is a straightforward hide, but if in doubt: obey the hint.
The cache is a CD container which contains a logbook (no pen, sorry) and some old CD's. Feel free to trade a CD, you might find something you like, otherwise just pop into the logbook to say "hey" or "you shant escape me, cache"
NB: watch out for falling pinecones as they are agressive and they will aim at you.
happy hunting! *smiley face*