The present study deals with the grain size distribution of coastal sands between Ramakrishna Beach to Bhimili confluence with an objective to understand sediment depositional environments, depositional patterns of the sediments in the study area and also deals with the heavy mineral characteristics and their distribution in the microenvironments of beach include Dune, Back shore and fore shore. The large distinctive suites of Heavy minerals occurring in sediments can provide valuable information for interpreting stratigraphy and to establish the Provenance of sediments. Minerals of economic importance such as Gold, or Kimberlite, indicator minerals such as Pyrope, are observed in the Heavy mineral fraction, they can helpful to trace the source in bedrock.