Geocaching have become the leisure activity of choice for my husband and I -lrb- aka `` trekkin ' and Birdin ' '' -rrb- , take we to incredible waterfall tuck in sandstone canyon , cave and many other adventure . we already own a Garmin GPS map60csx , and want a second device for those time when one or the other of we be travel and want to break up those trip with a cache or two . this be we choice . as with the higher price version , user must be conscious of which button they push , as it be easy to hit `` enter '' when you want to hit `` quit , '' therefore list a cache as `` find , '' when it be not be find yet . that say , the device be very sensitive and hold the signal well , even in the heavy cover of forest or rocky bluff , prefer location for we to cache . it be able to stand up to the kind of abuse this activity demand . it be be drop down rocky slope , fish out of swamp and even take a quick swim from a kayak , and keep work just fine . the two caution I would offer be that battery be eat by these device , even when avoid use of the backlight . after read another review here , we 'll look into the use of the rechargeable he mention . also , do not expect to load you additional map onto a second device for a bargain . we would hope to purchase a additional `` unlock code '' for the City Navigator program we have already buy , and it would cost almost one hundred dollar . if you think you may need to make map available to one device or the other , buy the Secure Digital version with the map may be a better option , as this can be switch back and forth between unit . overall , we have be very happy with the GPS map60cx . it can take the kind of abuse we have dish out as we climb bluffside and rockslide , paddle on river and push through thick thorn in search of we `` smiley . ''