Alisadr Cave, Kabudrahang
The said cave is the largest in the world, containing water and offering the use of canoes. This cave is located in the village of Alisadr, district of Kabudrahang, and was inaugurated in the year 1967. In the hills where the Alisadr cave is located, there are two other caves by the names of Soo Bashi and Sarab Caves. The water present in Alisadr Cave, takes its source from that of the Sarab Cave. The Alisadr Cave comprises of a number of small and large 'halls' or spaces, in a maze like fashion, connected to each other by passages.
The water within the cave is extremely cold but very clear, odorless, colorless and with an ordinary taste. It comes under the calcium bicarbonate category, is nearly neutral in PH, but unfortunately polluted. The ceiling of the cave is covered with a sedimentation of pure calcium carbonate and a mixture of other chemical compounds. Thus forming stalagmites of unique beauty and design, which draws the attention of visitors. The air within the cave is light and static.
To date, all the canals of this cave have not been discovered, and only approximately 2,100 m. have been recognized. Here, the height of the ceiling is between 1-35 m. the width of the canals 2 - 15 m. and the depth of the water 1 - 17 m. Within the cave, electric power, and paddling canoes (seating 4 persons) aid visitors to see parts of this cave.
Baglijeh Cave, Hamadan
The said cave is located near the village of Sorkh Abad (Hamadan) and because it resembles a 'well' special equipment is required here. The Baglijeh cave has beautiful stalagmites. The cave is 50 m. in length.
Dareh Farakh Cave, Malayer
This cave is around Malayer, near the village of 'Jowzan'. The opening or mouth of the cave is at an elevation of 2,220 m. facing the south east and to the measurements of 80-120 cm. Under the opening is a short, tight passage leading to a corridor 9 m. in length, from the ceiling of which water trickes, making the floor of the cave slippery and muddy. This passage narrows towards the end, in front of which is a stony mound and steps, ending up with a pool.
Hizej Cave, Hamadan
This cave is on the Arak - Malayer Road, in the village of Hizej. In colloquial language it is known as Zaqeh Darehsi. On entering the cave, there are 'halls' or areas 12 m. in length. After which there is a vast area that consists of a path branching off from one corne.
Besides the above there are large slabs of stone that are in a state of erosion, which can be observed in another part of this area. The cave is in a corridor shape with smooth walls and continues in this way for 150 m. Thereafter, comes another vicinity, the opening of which resembles a hanging apron. The width of the cave narrows after a distance, and the ceiling also decreases in height. At this point there is a little mound caused by soil sedimentation. To one side of this 'hall' or space is a short opening leading to a vast and level passage, to the left of which is a crevice of 5 m. This cave is 520 m. in length, and its most attractive feature are the stalagtites or strange 'icicle' like limestone hangings.
Sard Kooh Cave, Malayer
This cave is located near the village of Soltan Abad, at an elevation of 2,240 m. in the Sard Kooh Mountains of Malayer. The opening of the cave is at a steep gradient, ending up at a stony entrance to the main passage of the cave. The central part of the cave has a huge area with a high roof. After crossing over a pit-like pathway, having two natural steps of stone; comes a place with a sharp upward incline with an uneven base. To the left of which is a crevice similar to a well, being the main passage of the cave. The cave ends after 73 m. of this passage. The only spectacular sight in this cave is a 'column' of stalagmites of 2 m. Alongside this column, is a tight crevice of 5 m. or a pool containing clear water.
Other Caves, Hamadan
The others are not 'natural caves' but are historical caves of the province. These are as follows: Qalleh Jooq Cave, (village of Qalleh Jooq), Aq Qaya Cave, Tasheer and Gav Khaneh Caves (Malayer road to....) and Azad Cave (near Towiserkan).