Since July 2010 a unique, new attraction awaits to be explored along the Bavarian-Upper Austrian Danube – Donausteig trail! The 450 km-long trail from Passau past Linz to Grein , which mostly runs along the two shores of the Danube, is to every hiker’s delight. 41 Danube Loop Trails and 52 Donausteig Guesthouses and Hosts await you!