Geocaching Australia

can any body please tell me if you can program a garmin gpsmap 60Cx without having to download geocaching files to my computer, ie how can I put the co-ordinates in so I can use my gps for geocaching, I can't figure out how to do it
Thanks
Tim

it's cool with me as both posts had some useful info

thanks heaps

having just started this great sport i admit i am a little green but what i need to know is where and how i can log the caches i find ?
if any one can help this recently converted muggle it would be great.

i would rather just let them be than to try and pick any thing that could bite up