Some colleagues and a radio report reminded me about Geocaching, and with a weekend away coming up I thought I'd give it a try. Basically geocaching is wandering to a pre-determined set of coordinates with the help of a handheld GPS. Look within 6m of the spot it's led you to for a plastic box with some trinkets in it. This is the hidden treasure 'cache'. More more see this Getting Started guide.I borrowed a Garmin Gecko GPS (thanks, Matt R!) to give it a go. Turns out to be harder than you'd think, or at least that's what I found. More on that in the next post ...