I’ve loved Gold Basin since I was a kid. It’s a solid middle tier campground. Nothing fancy, but a lot of room. Bring the bikes, bring some sports equipment to play in the open field. Bring a swimsuit. The water is icy cold, but if you go downstream on the far side of the river there’s a clay patch that is there some years and not others depending on myriad factors. Try to get a spot on the river (not that it needed to be said) and you’re in for a sweet camp. Sit at the site supervise the kids through echolocation and it’s all good. I bet you could go fishing, but probably not a lot there for the most part. You could possibly even bring a small tube and find a little run into the slow water area.