I was talking to a friend of mine who is big into trail rides and plotting new routes. He converts his positions into UK OS references and plots them on his map. This way, he has actually 'discovered' routes that are not on the OS maps yet - perraps because the maps are a few years out of date. I'd always thought it was impossible to get 'lost' in the UK. The receiver he uses is a Garmin Street Pilot III which is a big sod if you've ever seen a picture of one. He reckons I should do the same and he says the Garmin eTrek range is cool. I don't know. What do you reckon? Anyone use GPS equipment and what have you used it for?