Edit: Geocaching faq http://www.geocaching.com/faq/
Looks like great fun, I think I'll have to give this a try when it gets warmer out!!
its pretty fun. i liked it. make sure you find the updated ones. great exercise
Wow. Have a new hobby now. All kinds of caches in my area.
I have been a few times. It is pretty fun but there are a few caches that I found to be really lame (not at all hard to find).
Wow there are a ton in my area, right on the beach on a lot of them too!
Its like treasure hunting, for crappy treasure! SCORE!
maybe i should get an MP3car.com sticker on the stuff i find