vrbas river in banja luka, republika srpska, bosnia

vrbas river banja luka republika srpska bosnia tree nature water woodland forest green herzegovina kastel fortress castle trees bosnia luka banjaluka vrbas river water september landscape herzegovina srpska republika serbian republic city town cities countryside country rural travel tourism nature trees fortress castle fort architecture old historic landmark medieval flowing europe balkans european european union eu picturesque outside outdoors outdoor bosnian east south eastern southern peaceful summer sunny sunshine blue sky tranquil tranquillity scenic scene scenery woods woodland lush green evergreen urban bank shore