Trip Planner: USA / Wyoming / Yellowstone National Park / Grand Prismatic Spring

Grand Prismatic Spring, Yellowstone National Park

4.6

#3 of 64 in Parks in Yellowstone National 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 .

Improve this listing »

Create an itinerary including Grand Prismatic Spring

Grand Prismatic Spring Tours

Yellowstone Lower Loop Full-Day Tour BOOK WITH VIATOR FROM $260

11 reviews

Duration: 10 hours

Buy tours from $260

Yellowstone National Park Full-Day Guided Tour BOOK WITH VIATOR FROM $269

15 reviews

Duration: 13 hours

Buy tours from $269

Yellowstone Guided Day Tour From Jackson Hole BOOK WITH VIATOR FROM $295

1 review

Duration: 11 hours

Buy tours from $295

View more tours

Grand Prismatic Spring Reviews

Rate this attraction

TripAdvisor Traveler Rating

2,418 reviews

Google

4.6

facebook

4.9

1,041 likes

By ewachtler On July 4, 2018

We parked at the Middle Geyser lot and walked to the Grand Prismatic overlook. The walk was level until the small uphill climb to the overlook, probably a mile and a half round trip. The view was abso... more »
By 1966Airstream On July 4, 2018

We accidently hiked to the overlook to see Grand Prismatic Spring but was glad that we did. It had not been our intent--we were looking for something else. We had always wanted to see Grand Prismatic ... more »
By Xenizen On July 4, 2018

While a slightly impressive walk to the spring, the steam and low level prevent you from seeing anything. If you're a photographer, you squeeze some nice shots, but not much to see. Instead, take the ... more »

View more on TripAdvisor »

Google

By Oliver Peckham On January 26, 2018

One of the most beautifully primordial places in the country. An essential stop for any Yellowstone tourist.

more less
By Guillaume Shi On December 3, 2017

Beautiful place with absolutely stunning colors. The place is really well guarded and protected, and very clean. It's very nice to see that everything is done to keep this place so pure and enjoyable for the future generations. Amazing place to visit!!!

more less
By Philippe Jeanty On August 26, 2017

I had only seen the picture from above but even at ground level it is very impressive. We visited in the late afternoon and the shimmering of the light on the colors was spectacular. The walk is fairly easy even for an older person.

more less
By Misty Frey On October 27, 2017

Super beautiful! There is a trail you can take where you can actually see the whole thing from above. I recommend taking that over walking the boardwalk... it's hard to see from there

more less
By Mangesh Kumar On February 16, 2018

It's amazing from google map view even...

more less

View more on Google »

Places to stay near Grand Prismatic Spring

Plan your trip to Yellowstone National Park

Get a personalized plan

A complete day-by-day itinerary
based on your preferences
Customize it

Refine your plan. We'll find the
best routes and schedules
Book it

Choose from the best hotels
and activities. Up to 50% off
Manage it

Everything in one place.
Everyone on the same page.

Best things to do in Yellowstone National Park

Popular

Grand Prismatic Spring, Yellowstone National Park

Plan your trip to Yellowstone National Park

Get a personalized plan

Customize it

Book it

Manage it

Best things to do in Yellowstone National Park

Plans to Grand Prismatic Spring by other users

For Business Owners