Akarere ka Nyagatare gafite imiyobora mike y’amazi. Usibye umugezi wa Muvumba unyura mu Karere ka Nagatare, imigezi y’Akagera n’umuyanja byo bigize imbibe n’ibihugu nka Tanzaniya n’Ubugande. Ibyo bikaba bituma ntawundi mugezi abaturage bashobora kwifashisha mu buhinzi n’ubworozi. Hari n’utundi tugezi duto nka: Nyiragahaya, Kayihenda, Karuruma,Nayagasharara na Kaborogota. Kubera ibura ry’imigezi n’inzuzi,kubera ibura ry’imiyoboro y’amazi bitera ikibazo cy’ibura ry’amazi kubaturage n’amatungo.