[Daily Photo] Sapphire Pool in the Biscuit Basin, Yellowstone / 黃石公園的Sapphire Pool

I took this photo in Biscuit Basin, Yellowstone National Park. The hot spring in this photo is Sapphire Pool. Just as its name says, the center of the pool has a deep blue color. I remembered when I was walking on the boardwalk beside some hot springs, sometimes the hot steam blew toward me, so I had to dodge the steam to protect my camera. It was really a memorable experience.