Sandy Beach has a boat launch, washrooms, fish cleaning shack, and a nice enough beach area. The lake was very clean, we launched off the beach, and we paddled east along the shore line for an hour or so. The water was clean and we could see the bottom at least 15 feet down.
The beach was smaller than at Kimball Lake. The swimming was very nice and the campground looks large. The store was not open when we were there. We probably wouldn't go back here as there are lots of other lakes of explore in the park and nearby and this was a bit of a drive (although we did see two bears on the drive).