Tuesday July 5, 2016 - Our next scheduled stop was Passau. However, the Baldur was ordered to undergo a mandatory safety inspection which involved putting the ship in dry dock and inspecting the hull. The official explanation was this was a normal safety inspection; however, there was also a story going around that the Baldur may have hit bottom somewhere and needed inspecting. Nevertheless, the Baldur sailed past Passau to the city of Linz, Austria, where Viking has maintenance facilities. We were bussed back across the border to Passau. Passau is beautiful. It sits at the confluence of three rivers, the Danube, the Inn and the Ilz. The beautiful St Stephen's Cathedral was the highlight. We were treated to an organ concert at the cathedral. The St Stephen's Cathedral organ is the largest cathedral organ in the world.