[Daily Photo] Grand Prismatic Spring in Yellowstone / 黃石公園的大稜鏡泉

This photo was taken at Midway Geyser Basin in Yellowstone National Park. The pool in this picture is Grand Prismatic Spring, the largest hot spring in Yellowstone and second largest in the world. It's so huge so that it's nearly impossible to take a full picture of it from the boardwalk beside it.

大稜鏡泉---黃石公園內最大的溫泉(全球第二大)，大到站在步道上無法照出他的全貌。