Kola Bay, also known as Murmansk Fjord, is a 57-kilometer-long fjord on the Kola Peninsula in the northwest part of Russia. It is an inlet of the Barents Sea on the northern coast, notably near the city of Murmansk, which is one of the most northerly large cities in the world. Due to the warm North Atlantic Current, the port of Murmansk stays ice-free throughout the year, which is vital for Russia's shipping and naval activities in the Arctic. The bay's significance is also tied to its history during World War II, when it served as a destination for the Arctic convoys. The unique Arctic environment allows for various activities such as northern lights viewing, ice fishing, and exploring the stark yet beautiful landscapes surrounding the fjord. The bay's waters have significant biodiversity, although they are threatened by industrial pollution. Given the strategic and economic importance, a substantial naval and maritime presence is active in the area. The region has stark contrasts, with long periods of winter darkness and the midnight sun in summer.