This is a spectacular walk. The walkways are brand new and make seeing the spring really easy. It's easy to think after you've seen all the geysers down by the Yellowstone Inn that you've seen everything, but the Grand Prismatic pool is a whole other experience. Glimmering in all it's luminous, spectrum of color, it's hard to believe you're still standing on the planet earth as you look through the steam into it's rainbow of hues. Don't miss it!