Gamasiab Spring

Gamasiab Spring is one of the most distinctive and best-known natural springs in Iran. It is located in Nahavand County, Hamadan Province, about 20 kilometers south of the city of Nahavand on the road toward Nurabad in Lorestan. The spring rises from the northern valleys of the Zagros Mountains and from natural glaciers, and thanks to its very large volume of water and the natural scenery around it, it is regarded as an important natural tourist attraction in the region. Also called "Sarāv-e Gāmāsi Āv" in the local language, the spring is listed on Iran's National Natural Heritage list and plays an important role in supplying water to the Nahavand plain and in its natural beauty.

The spring's outstanding feature is its very high discharge, reported at about 5 cubic meters per second, which forms a full-flowing river that continues toward the western provinces such as Kermanshah, Lorestan and Khuzestan. This clear, high-quality water comes from a natural glacier and, along its course, irrigates the surrounding orchards, pastures and villages, making it one of the main water sources of the region. The area around the spring is surrounded by trees, meadows and natural vegetation, providing a scenic setting well suited to a stroll and relaxation.

To visit Gamasiab Spring, you usually drive south from the city of Nahavand along the Nahavand–Nurabad road, and after about 20 to 25 minutes of driving you reach the spring. The road to the spring is fairly good and paved, and basic facilities for parking and stopping have been provided at the site. However, because it lies in a natural setting, visitors are advised to follow the principles of responsible nature tourism, including not leaving litter, respecting the vegetation and wildlife, and using the marked paths to avoid damaging the environment. The best time to visit this area is from late spring to early autumn, when the weather is milder and the vegetation is at its best.