yes, it is modifiable but this is the basic tour -
The Acropolis [Temple of Parthenon, Propylea, Temple of Athena Nike, Temple of Erechtheion, Cariatides, Herodeon Theater, Theater of Dionysus, Areopagus/Mars Hill]. A beautiful pedestrian walk along the Dionyssiou Areopagitou street and finally The Acropolis Museum. The tour will last 4 hours.