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 Brúarfoss and other smaller waterfalls along the way. While some may find the trek worth it for the unique experience, others might prefer to skip it in favor of other attractions in Iceland.