Another Guardian inspired visit: sewage pipes converted into a 'hotel'. They are a man called Andreas Strauss' brain child. Again, no fixed prices: you just leave a donation. Shame the 'shower' was in fact, a high tap...front of the bar area. We decided a swim in the Danube would be the extent of our bathing in Linz.
I did express concern that some youths outside our pipe one evening might roll us down the hill.