Sangam, a 90kms weekend destination for Bangalore a rough 2kms away is the Mekedatu.
Road condition is good for bikers too. You may find a bus running between sangam n mekedatu during weekends. Sangam is a nice place where 2 river channels meet and create a vast water base. Where water flows over the stones at an average height of 2-3ft. (Not so clean). But good weather can make it a good trip. Do try a fried fish. Be warned of those oils. (Might cause some throat issues).