After so much action some nature is needed. Therefore we can go by bike to the Petersberg, a small hill near Halle. You can either have some sport activities there like going swimming or climbing the hill several times. If you are more interested in culture you can visit the monastery on top of the hill. As far as I know now there are living monks and nuns again. For small children there is a small zoo and for big children there is a summer toboggan run. Nearby you will also find a horse station and many cafes to take a rest after all this stress caused by culture, sport, and kids.
On the other side of the river Saale is a forest called Heide. You can walk there or go skating in winter on the Heide lake. However, if you like to hear music while skating, you have to visit the Eissporthalle - an indoor ice skating arena.