Orebro is a city with 107,038 inhabitants, the seat of Orebro Municipality and the capital of Orebro County in Sweden. It is the seventh largest city in Sweden and one of the largest inland hubs of the country. It is located near the lake of Hjalmaren, although a few kilometres inland along small river Svartån. Orebro is home to Orebro University, a major university hospital, a medieval castle, the water park Gustavsvik as well as several large shopping malls and the Oset-Rynningeviken nature reserve at the lakefront.