Brúarárfoss, also known as Brúarfoss, is titled “Iceland’s Bluest Waterfall.” It’s a small waterfall at only around 10 ft (3 m) in height, but it’s known for its horseshoe-like shape and vivid blue water. The glacial river Brúará creates the waterfall and is sourced from the Langjökull glacier. The bright blue waters are only exacerbated as Brúarárfoss plunges into the crevice that it creates within the dark volcanic rock.