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Dragon's mouth spring is another amazing place to see.

The spring which is inside a cave, contains of swirling hot water and you can hear a big explosion sound every 30 secs or so from inside the cave. 

Then we visited the mud volcano which is nearby.
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We drove through Hayden valley when we come back from canyon village. People were watching with big telescopes but we didn't stop and spend much time there.

We saw few deer drinking water from the river. The Yellowstone river is flowing through the valley and that was a really beautiful scenery.

Then we stopped on the shore of Yellowstone lake near the natural bridge.

We stopped at Dragon's mouth and mud volcano too.
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Our intention was to visit Grand Canyon of Yellowstone. The drive from Mammoth springs to canyon village was splendid. That's when we saw a black bear too.

We visited Lower falls in the canyon. There was a short hike to the lookout point. 

Due to the time limitation, we had to skip upper falls and artist point. Then we turned back to drive through Hayden Valley.
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Our next stop was Mammoth hot springs terrace. It was a bit long hike and the atmosphere was full of sulfur smell.

It is actually a natural wonder.

It is a large area and we couldn't cover the full trail. It was around 2 pm and we were really hungry. Then we turned back and had lunch from the hotel near by.

Then we headed to the canyon village.
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On the second day, we entered from West entrance and took left from Madison junction. On the way to Norris junction, we got down at Gibbons falls.

The fall was beautiful. We didn't spend much time there though. We tried to cover the park as much as possible on that day.

We left Gibbon's fall and stopped at Mammoth Hot Springs.
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Old Faithful geyser is an active geyser and the visitor center predicts the eruptions pretty accurately. It was raining  at the time so we went inside the visitor center to watch the eruption from the inside. However, the rain ceased a bit after a while and we could watch the eruption at the geyser itself.

The eruption lasts several minutes and it is a really wonderful scene to watch.

Before visiting old faithful, we tried to visit Black Sand basin too but we didn't get down there due to heavy rain.

After watching the eruption, we turned back and drove to the cabin. We prepared dinner at the cabin and it was past mid night when we go to sleep.
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Grand Prismatic Spring is said to be a must see place in Yellowstone. It is located in Midway Geyser basin.

It was hard to find a parking spot there. Finally we got one and we started the short trail to the spring. The spring is magnificent. It is bit hard to see all the colors if the steam is too much but still it was radiant.

This trail also includes the Excelsior Geyser. This is not actively erupting geyser though. It is still beautiful with dark blue steaming water.

Our next stop was Old Faithful Geyser.
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