The most photographed thermal in Yellowstone, Grand Prismatic Spring, is a must see when visiting the Yellowstone National Park (Wyoming, USA). In fact, I knew about the Yellowstone National Park because of the spring.

Grand Prismatic Spring

Although it is only the third largest hot spring in the world, the Grand Prismatic Spring is certainly the most colorful hot spring thanks to the different organisms, including cyanobacteria that live within its rings. These bacteria bring striking yellow and orange colors to the ring that the combination makes the deep-blue color of the pool is striking and breathtaking at the same time.

The trail around the spring is quite easy to follow. We walked around the spring in less than an hour – thankfully it was not as crowded as I expected. However, the best view is still from the hills overlooking the spring. The pictures below were taken from the hill. Unfortunately, you can’t access the hill from the official trail of the Grand Prismatic Spring.

We went to the hill that overlooks to the spring from Fairy Falls trail. The location of the Fairy Falls trail is after the Grand Prismatic Trail and before the Old Faithful Geyser. Beware of the parking, as it could be very crowded. The trail gradually climbs but it’s not too difficult, as long as you wear proper shoes. Include the Fairy Falls trail to see the amazing view of the Grand Prismatic Spring from the certain height, it will complete the scenic view of the largest hot spring in the United States!

Grand Prismatic Spring from the Hill of Fairy Falls trail