Vjetrenica which means wind cave or blowhole is the largest and most important cave in bosnia and herzegovina and one of the most interesting caves in the dinaric alps mountain range which is famous worldwide for its karstic and speleological riches its entrance it not far from the village of zavala in southern herzegovina in the warmer parts of the year a strong blast of cold air blows from its entrance which is very attractive in the middle of the rocky hot and waterless terrain joi