Kostrena is a Croatian municipality east of Rijeka on the Kvarner Bay. It is famous for its beaches and a long tradition of seafaring and seamanship. Because of its beautiful rocky beaches and a walkway that goes along the shoreline, it is very popular for recreation and sports. A scenic hill walk called Trim-staza is located on the northeast side of Kostrena. There have been some archeological excavations in Kostrena, discovering ruins from the Roman times. Lately, urban development has been increasing. Kostrena is also an industrialized suburb of Rijeka.