Granulometric analyses of sand samples collected at the low and high water marks at three beaches namely Panambur, Thannirbhavi and Bengre near Mangalore for one year from May 1986 to April 1987 have revealed that the median grain size were 221, 231 and 470 µm respectively. The sand samples were well sorted during most of the year. Although erosion is reported at Bengre particularly during southwest monsoon season, the sediments appear  to be well sorted, perhaps due to the lesser sediment input by the river flow in comparison to that to southern side of the confluence.