The geodynamics of Cocount Island of St.Marys Island group of Karnataka state has been studied. The present study attempts to delineate the geomorphic and textural characteristics of the sediments of the St.Marys Island in the western continental shelf of India. The poorly sorted, mesokurtic to very leptokurtic sediments nature of the beach sediments suggest both erosional and depositional environments successively. Geomorphically identified repeated swales and beach ridges towards the Inland suggest Coconut Island is currently emerging vertically up.
