The Kemijoki River is the longest river in Finland, stretching approximately 480 kilometers. It flows from the Kemijärvi lake in the north and empties into the Gulf of Bothnia. The river is known for its scenic beauty and is an important waterway for both transportation and fishing. The Kemijoki is also significant for hydroelectric power generation, with several dams along its course. These dams help produce renewable energy, contributing to Finland's energy needs. The river's ecosystem supports various fish species, making it a popular destination for anglers and nature enthusiasts.