black (shavi) aragvi river and white (tetri) aragvi river in georgia that do not mix up

georgia tbilisi architecture travel mountain monastery mtskheta church tourism landmark georgian historic famous medieval jvari historical building scenic cathedral scenery panorama mediaeval fortress batumi heritage cityscape monument sightseeing tradition castle palace view river seafront skyline metropolitan highrise svetitskhoveli sameba bagrati gelati gergeti trinity pass caucasus aragvi shavi tetri gudauri pasanauri black white mix unmixed waters stream rapid valley wilderness watercourse waterfall creek lake water tree reservoir ravine landscape trail waterway