Brúarfoss waterfall in Iceland is known for its stunning blue color, fed by glacier melt from Langjökull glacier. Visitors can choose between a short 5-minute walk from the new parking lot or a 7 km hike to see several smaller waterfalls along the way. This is my favorite waterfall, especially taking the time to do the 7km hike. During the summer the water is a little more Green and in winter it is more blue