Chal-Nakhjir Cave

Chal-Nakhjir Cave, one of the most remarkable geological wonders in Iran, is located in Delijan County. The cave lies 8 kilometres north to northeast of Delijan, between Naraq and Delijan, on the slopes of a limestone mountain, and dates from the Tertiary period of geological time. Chal-Nakhjir is formed of limestone and dolomite, and the floors of its passages and corridors are covered with layers of white sediment known as "Snow White".

The cave was discovered in 1368 (1989) and cavers have so far advanced to a depth of more than 2,000 metres. Numerous passages, deep valleys, vestibules, lakes, limestone columns and ceilings covered in sponge-like crystal formations give the interior of the cave a unique appearance. Light reflecting off calcite crystals and crystal prisms, together with clear natural stalactites, creates dazzling scenes that place Chal-Nakhjir among the most beautiful caves in the world.

At the far end of the cave there is a pool of water and large chambers, which lend a special character to its depths. Despite these unique features, in the early years after its discovery some parts of the cave were damaged by profiteers, including the illegal removal of limestone stalactites. Fortunately, in recent years protective measures such as installing an entrance door and banning open access have been taken to prevent further damage and to keep the water sources from being polluted. With its unrivalled natural appeal, Chal-Nakhjir Cave calls for proper planning and investment to develop sound tourism use.