is a country in South-East Europe, on the Balkan Peninsula. Bordered by Croatia to the north, west and south, Serbia to the east, and Montenegro to the southeast, Bosnia and Herzegovina (also: Bosnia-Herzegovina/Bosnia and Hercegovina) is almost landlocked, except for 26 kilometres (16 miles) of Adriatic Sea coastline, centered on the town of Neum. The interior of the country is mountainous centrally and to the south, hilly in the northwest, and flatland in the northeast. Inland is the larger geographic region with a moderate continental climate, marked by hot summers and cold, snowy winters. The southern tip of the country has a Mediterranean climate and plane topography.