I got up before sunrise to try and catch Riverside Geyser, and did. Lots of photos in the geyser basin around Old Faithful. After Sue got up, we hiked up to Fairy Falls, passing Grand Prismatic Spring on the way and a Golden-Mantled Ground Squirrel. After Fairy falls we saw our first Bison! Then on to Imperial Geyser and back. We drove up to Grand Prismatic Springs and walked on that boardwalk. Then on to Mystic Falls and Biscuit Basin Overlook - where we saw Old Faithful erupt from a long way away. Then back to the Old Faithful Inn for drinks on the deck & sunset. Old Faithful Geyser was supposed to erupt before our dinner reservation, but it was not faithful.