This publication is the result of a recent survey on the status of biodiversity associated with the Sub-tidal and Inter-tidal Habitats of the Rekawa, Ussangoda and Kalametiya area in Southern Sri Lanka, as part of a larger project to conserve the biodiversity of this globally significant area. The marine biodiversity assessment comprises a status profile of five selected sub-tidal and inter-tidal sites, and general observations made along the entire stretch of coastline.