Yes, I have run a Simplex with stock coil, on wet sand and in the surf. Just re-ground balance when you get on the wet sand. I hunted in both Beach mode, and Park1, without issues. Machine ran quiet after GB. I pulled a clad quarter from wet sand as deep my scoop bucket, which is about 7 or 8 inches. When in park1 mode, I found some clad, and also canslaw and 2 tent spikes. Slim pickins, but the State Park Beach I was at here in Delaware last weekend, has not many depositors visiting since last year.
Try it. I've read some posts saying it can't be used on a salt beach. Ain't true. It works when you set it up right, at least on the beaches around here.