At the roundabout (next to huge supermarket "INTERSPAR"), take the exit to Kritzendorf/Höflein.
Drive through Kritzendorf. Take the first possibility after the place-name sign "Höflein" to turn right (there is a green arrow "Strandburg Silbersee"). Attention: This is a switchback!
Cross the rail tracks and drive straight ahead towards the riverside of the Donau (Danube).
Turn left when you reach the boardwalk ("Treppelweg"): You are already in "Donaulände"!
When you face the traffic sign "no vehicles", park your vehicle at the river bank.
Drive carefully: A lot of bicyclists and pedestrians use the "Treppelweg"!
Here is a sketch of the route:
Go to the the river bank and then downstream for about 800 metres.
Here is a sketch of the route: