The Donauinsel (Danube Island) is a long, narrow island, in central Vienna, Austria, 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 metres (230-690 ft) broad. The New Danube waterway is practically an elongated (swimming) lake, technically a diluvian bed. Recreation and festival venue To most visitors, the island is known as a recreational area with bars, restaurants and nightclubs. It has spor… (More on Donauinsel)