Geographical Situation

Alisadr cave is one of the rare samples of boatable watercaves and most wonderful phenomenon in the world. In the distance of 75 kilometers north west of Hamedan. It is located in Alisadr village, one of the districts of Kabudarahang Township.
The cave lies on the 48^o  18’ parallel of longitude and on the 35^o  and 18’ parallel  of latitude with an approximate altitude of 1900 meters above the sea level.

It is possible to go to Alisadr cave via three routs:
   1) Hamedan- Bijar via Lalejin road: it was constructed recently
   2) Hamedan- Tehran road, via Nojeh Air Base
   3) Hamedan- Saleh Abad road

Alisadr Cave was formed in sarighiyeh leights (Yellow Rock). There are two other cave in these heights: Subashi and Sarab, Their distance to Alisadr  Cave are 11 and 7 kilometers. These cave probably connected to Alisadr Cave, Because of the high extension of crystallized calcareous layer in the region.

Formation History

Geologists believe that the rocks of this mountain belong to the second geological period i.e. Jurassic (190-130 million years ago). As evidences inside the cave show, primitive people lived in the cave. People of Alisadr and other near villages knew this fact and used its water, but it was not used for tourism purposes. On 28.9.1963 Hamedan climbing board team with 14 members visited the cave and searched it. They used simple apparatus like flashlight and rubber tube to move forward. The news of expedition was published in the local newspapers and in 1967 after broadcasting the news, investigators, climbers, and naturalists flooded to visit the site. In 1973, Hamedan climber extended the entrance hole diameter by 50 cm. in 1975 people began to visit the cave.

In those days, villagers used flashlights, boats, and paddles for directing tourists through the cave.

Formation Process

After combination of rainwater with CO2 in air and formation mild Acid Carbonic, it penetrate into the calcareous fields and by chemical reactions, unstable Bicarbonate Sodium has been formed. This soluble chemical composition created voids into the thick calcareous layers.

wonderful alisadr cave

After millions of years they extended and gradually connected to each Molis Cave in France, Bookan, and Shovaliyeh caves in Australia.
Its colorless water has no smell. In addition, it has a normal taste. There exists no living creature in the cave’s water and its temperature is 12^o centigrade. The water is so limpid that one can see the depth of 10 meters with naked eyes and ordinary light. The results of physical- chemical experiments show that the chemical composition of water is approximately the same in different parts of the cave and is considered as light calcic bicarbonate with the nearly neutral pH (acidity). The water is not drinkable because it contains different calcareous salts.
Since the surplus water of the cave flows out of the cave in the form of fountains (like Cheshmehshoor), the amount of water flowing in the cave is stable, but when there is shortage of water supply, it has some fluctuations that its effects can be seen on the cave walls.
Depth of water changes from zero to 14 meters in different parts. The amount of water flowing in the cave is supplied by rainfalls, underground springs, continues flowing of water from the walls and cave ceiling, all of them are provided by raining and snowing. The height of ceiling in some parts is about 10 meters; it is covered by pure carbonate calcium and some combinations of it in other parts. They were formed on the way of following water from outside the cave. These sediments made different forms of stalactites on the floor and waterless areas. There are also various attractive stalagmites.

Inside the cave, One can see a nice view and inhale fresh air without dust and microbial impurity. It is cold in summers and warm in winters. It has a light motionless whether in such a manner that if one lights on the candle, no move is seen in its flame.
Although all of the cave chambers have not been explored, climbers advanced about    10-11   km along them. At present time, after boating one can walk along the cave and continue his way by boat. So far, 14 kilometers of the cave canals have been explored, but only some 4 kilometers have been illuminated and all ready to use. After visiting the stalactites, the great stalactites, the third and forth islands, boating, cave climbing, passing through water paths and crystalline ceiling chambers, one believes that this phenomenon is one of the masterpieces of universe creature’s which no one can describe and show all of its glory and beauty.

Recreative  and Accommodative Facilities

A 27 rooms hotel, 10 wooden villas (single and double beds).16suits, 50 tents, a restaurant, handicrafts, and meal shops, a mosque, hygienic service, a parking lot, a park for children, green areas, and climbing facilities has been constructed in Alisadr tourism complex.