Mansar Lake is situated 62 km (39 mi) from Jammu, Mansar is a lake fringed by forest-covered hills, over a mile in length by half-a-mile in width.
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Besides being a popular excursion destination in Jammu, it is also a holy site, sharing the legend and sanctity of Lake Mansarovar. On the Eastern Bank of the Lake there is a shrine to Sheshnag, a mythological snake with six heads. The shrine comprises a big boulder on which are placed a number of iron chains perhaps representing the small serpents waiting on the tutelary deity of the Sheshnag. Two ancient temples of Umapati Mahadev & Narsimha as also a temple of Durga are situated in the vicinity of the Mansar lake. People take a holy dip in the water of the lake on festive occasions.
The Mansar lake near Jammu city is one of the most famous adventure tourism destinations in India. Mansrover, is also called as Mansar. The Mansar lake is about 20 km from National Highway No. 1A. Road to Mansar Lake starts from just near Samba on National Highway No. 1A. The shortcut road from Mansrover or Samba to Udhampur by-pass the Jammu town. Mansar lake, with its length more than a mile and width half-a-mile, is a very attractive lake in the midst of lusting greeneries surrounded by forest-covered hills. It is considered as a very holy site known from mythological periods sharing the sanctity and legacy of Mansa Sarovar. It is a very popular base of tourists. A temple for a snake god, Sheshnag, is located on the banks of lake. It is believed that it is auspicious for newly wed couples to seek blessings of Sheshnag by performing three parikarma around the lake.