Make your Yellowstone visit a trip to remember with this self-guided walking tour to the Grand Prismatic hot spring, one of the park’s absolute must-see attractions. As you walk this trail to the best overlook of the stunning spring, you’ll dive deep into the mysteries behind this geothermal wonder, from how it formed to why it looks as colorful as it does. Plus, uncover the fascinating history of Yellowstone’s biggest eruption and hear the words of the first European to ever set eyes on Grand Prismatic. If you want, you can even keep the adventure going with a hike to Fairy Falls!

After booking, you can check your email before downloading the Action Tour Guide app, enter your unique password, and access your tour. The preceding steps require good internet/wifi access. Simply follow the audio instructions and the route from there.

Buy once, use for one year! Ideal for extended visits and return trips over the next 12 months.

This is not an entrance ticket to attractions along the route. Check opening hours before your visit.

Points of Interest along the Grand Prismatic:-

• Overlooking Grand Prismatic
• Firehole River
• Hot Springs to the Sea
• Volcanos and Vistas
• Yellowstone’s Hotspot
• Yellowstone’s Biggest Eruption
• Osborne Russell
• Fairy Falls
• A Sacred Spring
• Synechococcus
• Rainbow-Colored Hot Spring

Benefits Over Live Guides and Group Tours:

• This flexible, self-led tour works by sensing your location as you walk
• The in-depth audio narration plays as you walk
• The audio tour is valid for one year after download, and you can use it as often as you want within that time.
• Once it’s downloaded, the tour works completely offline
• Tour your way: choose when to start, stop fast-forward, or rewind
• Ask for help from a real person anytime over call, chat, or email