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Grand Prismatic Spring, Yellowstone National Park

4.7
#3 of 82 in Parks in Yellowstone National Park
Hot Spring · Nature / Park
At nearly 113 m (370 ft) across and 37 m (121 ft) deep, Grand Prismatic Spring holds the title of the largest hot spring in America and one of the largest in the world. A premier attraction at Yellowstone National Park, the spring's fame traces back to early explorers and fur trappers who first noted it in the early 1800s. The boiling pool constantly steams and bubbles, with its vivid, rainbow-like appearance--the result of pigmented bacteria. To get a close-up view, walk along the park's boardwalk, which leads to a route close to the water's edge. Stay on the path, as the high temperatures of the pool can be dangerous. Plan to visit Grand Prismatic Spring and other customer-reviewed, writer-recommended Yellowstone National Park attractions using our Yellowstone National Park travel route app.
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Grand Prismatic Spring reviews

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TripAdvisor traveler rating
TripAdvisor traveler rating 4.5
3,028 reviews
Google
4.8
TripAdvisor
  • By Annabell O
    Seeing the Grand Prismatic Spring was definitely one of the highlights of our time in Yellowstone. The short hike up to the overlook is very much worth it!  more »
  • By Tyra H
    Don't miss a single pull off at Yellowstone National Park as the pandemic is here and you are not allowed to do much else.  more »
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Google
  • By Joanna Żak
    Amazing place! One of the world’s largest and deepest hot springs. Beautiful!
  • By Steven Flores
    There is a hike to a top overlook that is highly recommend. Wonderful colors. Amazing.
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Plans to Grand Prismatic Spring by other users

53 days in United States BY A USER FROM UNITED STATES March, popular sights Preferences: March Attraction style: Popular sights Pace: Medium 8 days in Yellowstone National Park BY A USER FROM UNITED STATES May, popular sights Preferences: May Attraction style: Popular sights Pace: Medium 12 days in Grand Teton National Park, Yellowstone National Park & Glacier National Park BY A USER FROM UNITED STATES July, popular sights Preferences: July Attraction style: Popular sights Pace: Medium 12 days in Grand Teton National Park & Yellowstone National Park BY A USER FROM UNITED STATES July, popular sights Preferences: July Attraction style: Popular sights Pace: Medium 17 days in United States BY A USER FROM UNITED KINGDOM August, teens, popular sights Preferences: August, teens Attraction style: Popular sights Pace: Medium 11 days in United States BY A USER FROM UNITED STATES October, popular sights Preferences: October Attraction style: Popular sights Pace: Medium
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