Of an area by the river in town...
compared to a photo if the same spot from years ago, as you can see there were steps and a path that are not there anymore, would this be a good place to check?
I would check the hilly area first. People love to sit at the top of hills and check out the scenery. And kids love to roll down hills and lose all their pocket change! Hit the hill first!
That's where you tie a piece of metal to a long cord and throw it out into the river. Then you drag it back and see if you catch any magnets! They're not very tasty and are a pain to clean. Also, they stick to the skillet. And never mind what some other folks here tell you because they will try to pull your leg.
I surely thought someone would have told you what magnet fishing really is by now. You tie a magnet to a heavy line and throw it into the water to see what you can find. It can be fun and it can also be a pain when the magnet hangs up on something and you have to retrieve it.