I was a puss to start too, I went out the day before & checked out the ice, to make sure it was really thick.
I still think it is a stupid idea in the scheme of things, because falling through ice into a river in Iowa is the last thing I want to ever do. But after looking at the ice, I could tell it was very thick. It was fun, and a new experience for me. With studs you're good to go, as long as you turn slowly you won't fall, I fell a few times playing around.
Without studs you can expect to fall a lot.