Asking someone would be nice especially when you are lost in a place that is unknown to you. But what if the person you asked tricked you and gave you a wrong location? Isn’t that bad? You have a map on your backpack but then you just realized that it is outdated. With these problems you encountered, I suggest that you may need a gps unit that will help you to arrive at your destination fast.
There are many sites on the internet that sells gps at a cheap price but can you trust them? I suggest to you that in Garmin Nuvi, you can find quality based gps unit in a cheap price. You will never regret when you buy one.
There are selling many kinds of gps, so you are free to choose that suit you best. There are many advantages and disadvantages in using a gps. Just be sure that you will be able to use both map, gps and compass.