Should I continue shopping or buy this GPS as my First? in GPS technology and devices Posted April 23, 2011 Like chachi said if your batteries die you really are in trouble. For this reason alone keeping a small magnetic compass in your bag is a necessity. Not to be too beligerent, but if you only have one set of batteries, you prolly didn't think of the compass either. I know, the GPSr could break. But without a paper topo map, (which I have yet to carry since leaving active duty) I'm not sure what good a compass will do you if it does. I'm on my 2nd GPSr so far (and both have been bought solely for geocaching...PN-30 and an Oregon 200). My next one will in all likelihood have a compass. But, as has been often said, once you are within 25 feet or so, you should consider yourself at GZ, and put the GPSr away anyhow. We're nearing 600 finds, and have not used a compass for 5 of them so far. (My phone has an electronic compass in it. I think I've activated it twice looking for caches so far.) A compass is really a matter of preference for caching. If you do other outdoor activities, you should plan, and equip yourself accordingly. Later! I would not leave the house to venture into the unknown with one set of batteries "at least not on purpose", let alone without a compass..You might forget a compass, but not me. Its not about using a compass to find a cache, its about using one to know direction if the gps fails..You really missed the point.. I am surprised that you do not know how to navigate with a compass "without a paper topo map" considering you were active duty military.. Good luck with the i-phone and gps when the batteries are dead.. I quote " If you do other outdoor activities, you should plan, and equip yourself accordingly".. I may not have 600 caches, but I am smart enough to know that I may be in a situation where daylight a batteries might be running low..And if that happens....I will have my compass, and you will have nothing..I guess its you choice.