Geocaching, or high-tech treasure hunting, only became possible in 2000 with the release of accurate GPS technology for non-military use. It first began in the US and since then has grown to such an extent that there are almost one million caches worldwide. Local groups hold regular events throughout the UK and it's a great way to share your love of the outdoors with others. This is the first UK-oriented guide to this most addictive of outdoor pursuits. Primarily designed as an introduction for those new to geocaching, it also offers lots of advice and information for anyone already bitten by the bug. It is a step-by-step guide to a new, accessible, family-friendly outdoor pursuit.