The definite place to be on a beautiful summer night in Bonn. Alter Zoll is a large beergarden under an old tree with direct view of the Rhine and a wonderfully relaxed atmosphere. It can become very crowded and take 20 minutes to get your drinks. Many people and especially students also bring their own drinks and sit down on the meadow next to the beer garden. To find it, just follow the crowd at Koblenzer Tor down to the rhine.