This image was taken on a casual drive outside of Christchurch, New Zealand. Wildly-blue rivers are not uncommon in NZ for, these tributaries, are often glacier-fed. All around New Zealand you find massive ponds and lakes that are nearly glowing they are so blue.
My favorite part of this image is the symmetry with the bend in the river, the bend in the trail, and perfectly matching the shadow of the mountain above - although I did not notice this whilst taking the picture, as a bit of a "Geology nerd," we can assume the mountain above encountered heavy, ancient rains, that shifted the sediment from the mountain all the way down to the riverbed. Why the sheep trail matches perfectly? No idea but, to me, I like to consider it as a metaphor representing unity of Earth, and the Life that roams it.