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Why locals love it
The Rio Bar is located very close to the shopping regions Bahnhofstrasse and Europaallee as well as the main station. This proximity to the public transport makes it a great location to meet friends who are passing through Zurich, or to gather for a last drink after a weekend trip out of town. It has a nice Terrasse located next to it.
Why you should visit it
The Rio Bar sits on a busy bridge, and it's fun to observe pedestrians and cyclists from here. Next to the Rio Bar, the Sihl river and the Sihl channel combine. Observe how the river is channeled through the main station: The tracks for the long distance trains are on ground level, and the tracks for the local trains are lower than the river.
Visit the bathroom in the lower deck for a nautical impression.