Donau Arena is an arena in Regensburg, Germany. It is primarily used for ice hockey. Donau Arena opened in 2001 and holds 4,936 people. ARENA may refer to either: Nationalist Republican Alliance, a political party in El Salvador. ... Regensburg (also Ratisbon, Latin Ratisbona) is a city (population 129,175 in 2005) in Bavaria, south-east Germany, located at the confluence of the Danube and Regen rivers, at the northernmost bend in the Danube. ... Ice hockey, known simply as hockey in areas where it is more common than field hockey, is a team sport played on ice. ... 2001 (MMI) was a common year starting on Monday of the Gregorian calendar. ...