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Discover Yellowstone’s most stunning overlook! This self-guided audio walking tour takes you along part of Fairy Falls Trail to the Overlook for the iconic Grand Prismatic. Discover the science behind the rainbow colors, ancient Native traditions, volcanic forces, and more — all while walking through one of the park’s most unique landscapes. Don’t forget your headphones for a deeper connection to this natural masterpiece!
Fairy Falls Parking Lot, Yellowstone (by Firehole River)
Plan for 1.5 to 4 hours to complete the Grand Prismatic Spring Overlook Trail and nearby areas.
1.6 miles
Grand Prismatic Spring is known for its stunning rainbow colors and being the largest hot spring in the United States. Its vibrant hues—blue, green, yellow, orange, and red—come from heat-loving microbes living around the spring.
The best time to visit Grand Prismatic Spring is during spring (April–June) or fall (September–November) for mild weather, fewer crowds, and beautiful seasonal scenery.