Parad Shivlinga is a unique religious site housed in Harihar Ashram, Haridwar on the Kankhal Road. The word Parad Shivlinga is derived from “Parad” meaning mercury and “Shivling” which is a sacred symbol of Lord Shiva. Thus, Parad Shivling is also known as the Mercury Shivling, making it a holy pilgrimage site among the devotees of Lord Shiva visiting Haridwar.

The other attraction at this temple, also known as Pardeshwar Mahadev Temple, is the Rudraksha Tree which has been standing there for decades. People collect Rudraksha from the tree and wear it to get rid of the problems in their lives. The Parad Shivling is made from 151 kg of pure mercury making it a one of its kind in the world. The temple is, thus, thronged by thousands of devotees and pilgrims annually.