The district of Kostheim, where the Main flows into the Rhine, is known for its wine and the associated festivals such as carnival and winegrowers' farm festivals. Even Barbarossa had a large Whitsun festival held on the Maaraue.

A visit to the Maaraue outdoor pool is also worthwhile, because not only is the view of Mainz Cathedral particularly beautiful here - the water quality of the pool, which is filled from its own spring, is also excellent.