The Donauinsel (Danube Island) is a long, narrow artificial island in central Vienna, Austria, lying between the Danube river and the parallel excavated channel Neue Donau (“New Danube”). The island is 21.1 km (13.1 mi) in length but is only 70–210 m (230–689 ft) wide. The New Danube waterway is practically an elongated (swimming) lake, technically a diluvian bed. It has been described as an “autobahn for swimmers”, due to the number of people in Vienna who own amphibious cars.
