This is my favorite waterfall hike in Iceland. This 4.3 mile hike is very adventurous and amazing. You get to hike through caves, across rivers on a log while holding a rope with amazing canyon views. To hike this you ́ll want to cross the river at the bottom of the canyon. You will have to take off your shoes for this part so bring a small towel to dry off your feet. You will hike up and at the top you will cross the river again and hike down on the other side of the canyon. It is rated moderate