Skaftafeli in Iceland

I think the main reason I would like to visit Skaftafeli is because it took me completely by surprised when I looked at the picture I was thinking the this cave was made out of ice. Iceland is a cold place so it's natural for ice to form places, I was astonished to know that Skaftafeli was made out of minerals not ice but the minerals were so clear. It's beautiful and I would like to go there someday.