Wien River Cycle Path

The Vienna River Cycle Path is also known as the Vienna Valley Cycle Path and is one of eight themed cycle paths in Vienna. It offers many sights and attractions along the route, such as the Museumsquartier, the Naschmarkt, Schönbrunn Palace, and the Otto Wagner Bridge.
The Vienna River Cycle Path is approximately 13 kilometers long and takes you from the Ring to the Lainzer Tiergarten or even to Purkersdorf. It is well-developed and signposted, and connects to other cycle paths and public transport. It is suitable for both beginners and advanced cyclists and requires easy to moderate effort.
I have found several websites that can provide you with more information about the Vienna River Cycle Path. You can check them out here:
Vienna Valley Cycle Path: Along the Vienna River: A website with a description of the cycle path, its history, its highlights, and some photos.
Vienna River Cycle Path: Cycle Tours and Cycle Routes | komoot: A website with a map of the cycle path, some photos, and tips from other cyclists.
Wienfluss-Weg - Location, facilities, opening hours: A website with practical information about the cycle path, such as its location, facilities, and opening hours.

The Vienna River Cycle Path is a 13 km long cycle path that runs along the Vienna River from Auhof to the Ringstrasse. It offers a beautiful way to explore the city and visit several historical and cultural sights, such as the Lainz Tiergarten, the Moser Villa, Schönbrunn Palace, and the Naschmarkt. The cycle path is open year-round, but opening hours vary depending on the season and weather conditions. It is safe and intersection-free and is regularly monitored and cleaned by the Vienna Waterways Department.

Very well developed connection route out of the city. Great recommendation! Be careful with runners and pedestrians, there is enough space.