At the head of Kolugljúfer gorge, cut by the river Víðiðalsá is the 25-foot waterfall Kolufossar (Kolufoss). The gorge is about 1 km in length and 150 feet deep. To get there, from Route 1, between Blönduós and Laugarbakki, take route 715. At the T-intersection drive towards Vididalstunguheidi. Take the exit towards the farm Bakki and you will arrive at Kolufossar.