Rwizi rweSinú rwizi rwechitatu rwakakosha rwizi munyika pamucheto weCaribbean, mushure merwizi rweMagdalena neCauca.
Rwizi urwu rwunoberekerwa muNudo del Paramillo, muDhipatimendi reAntioquia, uye rwunoyerera ruchienda kuBoca de Tinajones, iri padyo nebani reCispatá, muCaribbean Sea.
Mune yayo 13.700 km² yedhishi, iyo Sinú inodiridzira maguta gumi nematanhatu muDhipatimendi reCordoba, ayo anotora hupfumi hwavo kubva kubatsiro rworwizi urwu. Hazvishamisi kuti mupata weSinú uri pakati penzvimbo dzakabereka kwazvo pasirese, padhuze neiyo yeNairi, Tigirisi uye Yufratesi. Muchikamu chayo chepakati chinoshandiswa kugadzirwa kwesimba remagetsi emvura neUrra reservoir uye maviri emagetsi emagetsi.
Rwizi rweSinú runogona kufamba makiromita mazana maviri, kusvika kuMontería, chiteshi chayo chikuru. Ndiyo imwe yenzizi nhatu dzakakosha muDhipatimendi reCórdoba, pamwe neSan Jorge neKanalete nzizi. Inoyambuka dhipatimendi kubva kumaodzanyemba kuenda kuchamhembe, pakati peSerranía deAbibe neSerranía de San Jerónimo.