When traveling I used my detector at just about every rv park we stayed in, or I would go into town and hunt the local parks. You would be amazed at the stuff you can find, some good, lots junk, but you always find something. Last fall I sold 3 rings I found a few years ago for $347 at the we buy gold joint. I used to average about $150 a year in coins. Still have a pile of rings and lots of coins in a bucket. The more you pay for a detector,new or used, the smarter the unit should be and the more it will tell you before you dig. Always fill any holes you dig and make it look like you were never there. Removing things from the ground can be an art all by itself without disturbing the area.Nothing gets you into more trouble fast, is leaving holes.