Yellowstone National Park

I did not realise this park is so big, we entered at the gate closest to Bozeman and only covered a tiny bit of the North Eastern part (I think!). The highlight for me was this place near Mammoth Springs, the boiling hot water cascades down the slope and makes it look like steps...amazing.

I thought I had seen everything that the hot water coming from the earth can do to transform the landscape in Iceland, but I have never seen anything like this.