a walk in the woods

Actually I was geocaching, but I am very bad at it. Maybe it is because my little machine seems only to have a 25 foot accuracy. However, under the poplars was mases of pulmonaria, or lungwort or William and Mary. They must have escaped. So I got in a good walk, and I did not meet any bears even though there were lots of highbush cranberries. I wonder how I can make my geocaching more productive?