Tasnim | Gholamreza Ahmadi: The beautiful lagoon of Qadikola is an important wetland in Mazandaran province, northern Iran. Qadikola Lagoon is located in the south of Qadikola-bozorg, centre of Alidari rural district, in the vicinity of a forest where the farms and citrus gardens end. In the lagoon you see stout, tall trees whose roots and part of their trunk are under water. The length of lagoon is 200 metres and its width, about 150 metres.