content: Yeah, you got perfect explain.  First I went to the midway geyser basin, and I could only see the pool on the same level. But I saw some people on the small hills in the opposite side, I could imagine the beautiful scene that they could see; so I went to the park's ranger to ask, they told me it was illegal to climb up there.  The next day, I wen to the Fairy Falls shorter trail to check, then I found hundreds of people were climbing up and down on the small hill, so I just followed them. I thought the law enforcement would not punish that many tourists. The view was amazing. I am so glad that I have been there. If I were not up there, I would be supper disappointed.