The position of the Opert Wall is such that it prevents clouds from passing from the north to the south, so the view of the cloud ocean can be seen in this area most days of the year.
Tang-e Boraq (Boraq Gorge) is another erosive gorge in the north of Fars province, which is located about 160 km from Shiraz and near a village of the same name.
Shahre-chai Dam is one of these lakes which has become one of the important tourist destinations of the province due to its beauty and proximity to big cities such as Urmia.
Before entering Khuzestan province, Karun river is known as Bazoft. Shortly before the Karun 4 dam, the Khersan river crosses the Bazoft river to form the massive Karun river.