Walking around the Old Faithful area is an awe inspiring sight. There are so many different types of hydrothermal items such as geysers, hot springs and fumaroles. There's the distinct smell of sulfur in the air as well. If you go and you take kids, make sure they stay on the boardwalk. Getting off the path is illegal and deadly. It was amazing though to see the animals such as the buffalo and grizzly just walking around, seemingly unfazed that they could fall through the crusty earth at any time and be boiled alive.
We spent probably 2 hours just walking around the Old Faithful area waiting for the timed eruption. While not the most reliable eruption, they pretty much have it down to a 15 minute window when it will erupt again. So, we found our viewing spot, sat down and waited. Sure enough within 5 minutes of their guesstimated time, Old Faithful started to bubble, gurgle and spew. If you've never seen it, it's well worth it. This was high on Linda's to-see list and it was a great show.
After that, we headed over to one of the many restaurants around the Old Faithful Lodge and grabbed some lunch. Shortly after lunch, we headed over to the Black Sand Basin area and then hike back over to the North end of the Old Faithful area and then over to Biscuit Basin. It's an easy hike, but there's usually not a whole lot of people out there, which is nice. About half a mile in, we ran into a small herd of buffalo hanging out by one of the hot springs. We snapped a quick family pic and moved on by them.