Then I worked my way into the corner near the blue spinner and my metal detector went nuts. I thought it was malfunctioning because it was beeping constantly. But when I got down with my pin pointer, there were signals everywhere!
It looks like I am going to have to go back to this park more often. It's a real moneymaker! The coins were all fresh shiny new, so I didn't need to clean any of them. Last time I had been there was early July, so clearly kids drop coins here a lot.