Thanks for the tips. I have a CZ-20 which I use in All Metal in the wet sand at the beach, then I dial it to 0 to see if it's iron and not worth digging. All this stuff was found in a swimming area and I used my Vibratector 730. It's a PI machine that vibrates in your hand. I works great. I found the GoPro and the ear ring in ten foot deep water so I hold my breath, dive down, and scoop around till my air runs out. After I got tired I went to a spot where ladies sit on the rocks in the river. That's where I found the coins and the rest of ring. There was one wheatie in there so yeah, I'm excited about getting back with a screw driver to clean out the cracks between the rocks.