Larry,
I found most in the "park" but I've found a some good ones in the playground area tool. In the play area, I found a gold wedding band, a gold charm, and the gold necklace. All the rest were in the park area. I like to hunt the play area first before anyone gets to the park. The last few days here in Seattle had had snow on the ground and it's been cold.... in the 20's and 30's.