Staying at Granite Creek Campground?

My friend and I are going up to Jackson, Wy at the end of this month with her parents. Her dad wants to stay at the Granite Creek Campground. But, my friend and I aren't liking the idea of having no showers. If you've ever been to Granite Creek Campground, what did you do about the shower situation...or where did you go? Does the Granite Creek Hot Springs have a shower house?!