Bali Island is the world-famous resort area and one of the attractive points on tourism resources is the coral beaches with golden colored coral sand. However, the serious beach erosion has been occurred in proportion to the tourism development on the coastal area. To recover the sandy beaches as the same condition as before, the beach conservation project has been implemented since 2000 until end of 2008. The project was conducted at four locations that is; Sanur, Nusa Dua, Kuta and Tanah Lot. The beach nourishment has been conducted at Sanur, Nusa Dua and Kuta with 1.3 million m3 volumes in total. To minimize the sand flow out after nourishment, several supplementary coastal structures such as headlands, groins and artificial islands (offshore breakwater) has been also constructed. Photo.1 shows the beach condition before and after the project. The sandy beach could be recovered as the same condition as before erosion. The technical considerations on planning and construction for the project were presented in this paper.
The long-term shoreline monitoring with more than three-years has been already continued in Sanur and Nusa Dua after conducting the nourishment to know the beach behavior after initial beach nourishment. Figure 1 shows the shoreline change for 3.5 years after nourishment at the section enclosed by two groins of GA1 and GA2 in Sanur. The stable beach condition was observed after half year. The shoreline changes in other areas are also presented in this paper.