Ozalj is a town in central Croatia, located north of Karlovac and southwest of Jastrebarsko, on the Kupa River. It is close to Žumberak in the north and the border with Slovenia in the northwest, with Metlika being the closest Slovenian town.

The Žumberak Mountains is a range of hills and mountains in northwestern Croatia and southeastern Slovenia, extending from the southwest to the northeast between the Krka and the Kupa.