I have just found this hike today and will be visiting Iceland for 11 days in July. I can't believe I found this thread. We would like to do a day hike in this area starting from Skogar and obviously not finishing in Porsmork. But is this possible to walk in for 4 hours and back out in 4 hours? We are strong hikers. How far do you think we will get? Is this worth a day hike. Thanks for much for answering these questions.