Danial Cave

Danial Cave is one of Iran's water caves, or river caves, and lies in the Alborz mountain range. Geographically, it is located in Salman Shahr District of Abbas Abad County. The cave is 2,158 metres long and 74.2 metres deep, and its main entrance, the cave's only one, is 160 metres above sea level.

Danial Cave is the second largest river cave in Iran, after Qury Qaleh Cave in Ravansar, Kermanshah. The temperature inside the cave stays almost the same throughout the year. A stream flows from the entrance to the far end of the cave, formed by the joining of several brooks and springs. Its depth varies in different parts of the cave but generally does not exceed one metre. However, the cave has several passages and sections where the water rises during rainfall, making them almost impossible to cross. The water inside the cave is supplied by several small springs that rise in its various branches. It is crystal clear and low in dissolved minerals, which makes it drinkable.

Animal life in Danial Cave is limited to a few species, including mosquitoes, bats, and aquatic animals such as frogs and crabs. In particular, the Mazandaran mouse spider is one of the native creatures of the region, and its presence near the cave is of interest. This variety of wildlife reflects the cave's distinctive ecosystem and the importance of protecting it.

It is recommended that you visit Danial Cave in a group, as this not only makes the experience more enjoyable but also reduces the risks that can arise when you are on your own. Joining a guided tour can also help you make the most of the available facilities. Before entering the cave, remember to bring rubber boots, a helmet and a headlamp, as only some parts of the cave are lit and the rest is dark. It is also better to wear gloves to keep your hands warm and protect them from injury. If you are visiting the cave just for fun, it is best to bring a backpack with spare clothes and your favourite snacks, and to keep them from getting wet. Don't forget to take a few bottles of mineral water with you. The suggested time for a visit to Danial Cave for non-professional groups is about five hours.