Hoping to see Old Faithful and Yogi Bear when visiting Yellowstone National Park, I found Old Faithful but was disappointed not to find the Bear. But better still, and to my utter delight I discovered these Vivid pools:
These astonishing colours have an astonishing explanation: heat and bacteria. if you want to know the science click here.
If you want to see more pretty colours in the WordPress Photo Challenge, click here!
So where’s Yogi? Have you seen him?