Yol Valley (Eagle valley) was originally established to conserve the birdlife in the region but now is more famous for its dramatic rocky cliffs and narrow, heavily shaded canyons that allow sheets of blue-veined ice to survive well into the summer. At the gate, there is museum of wild animals of the national park. There is great hiking opportunity from the parking areas to the glacier following the stream for 3km leads to the ice-filled gorge and one or two local souvenir salesmen. In winter time glacier is up to 10m high and remains frozen usually until late of July. You might see wild ibex or argali sheep up in the mountain if you hike early in the morning.