The River Nidelva is a river located in Norway, flowing through the city of Trondheim. It is approximately 10 kilometers long and is known for its scenic beauty, with lush greenery and historical buildings lining its banks. The river eventually empties into the Trondheimsfjord. The Nidelva is significant for its role in the local ecosystem and its historical importance to the region. It has been a vital waterway for transportation and trade since the Middle Ages. Today, the river is popular for recreational activities such as kayaking and fishing, attracting both locals and tourists.