Alamut(Persian language Persian: الموت "Eagle taught" or "Eagle's Nest")is located in the central Alborz Mountains south of the Caspian Sea close to Gazor Khan near Qazvin Province, about 100 km from Qazvin.

Ovan lake is a small alpine lake in Alamut. The only tributary that flows into the lake, is a stream with the same name, Ovan, coming down from northern mounts. The north of the lake is also surrounded by three small villages, namely from east to west: Varbon, Ovan and Zar-abaad.

The lake can be reached via a road which connects Qazvin to Alamut. Starting from the south towards the north, there is village at beginning of the road, called Shinqor, which is probably the best/last place one could obtain foods and drinks. After passing a relatively high hill there is a flat area called Rajaee-dash where a fuel station is available. A few kilometers after this point, where the road branches off, the Moalem-kalaye­ road should be taken. At the last fork, there is a narrow road towards the north which directly goes to the lake.