The river joins with the Fiumicello close to the easternmost point of San Marino. The river flows northeast past Ospedaletto and into the Adriatic Sea northwest of Riccione and southeast of Miramare. The Marano's tributaries include the Cando.
The river meets the Fiumicello close to the eastern boundary of San Marino. It then flows northeast, passing through Ospedaletto before entering the Adriatic Sea north of Riccione and south of Miramare. The Marano is fed by the Cando.