The star attraction of the Kjölur route, the Kerlingarfjöll mountain range features steaming hot springs and a span of beautiful rhyolite mountain slopes topped with several dramatic glacier-speckled peaks, the highest rising to 1,477 meters (4,846 feet). The area is popular with hikers and has great trails of varying lengths and difficulty, with steps and trails climbing the slopes to give access to dramatic, other-worldly panoramas. To reach the mountain cluster, turn off Route 35 onto Route F347 and drive for 10 km (6 miles), where you'll reach the Kerlingarfjöll Mountain Resort. You can hike along a canyon from here to reach the mountains, or continue on a rough gravel road for 5 km (3 miles) to reach a parking lot in an area known as Hveradalir.