On September 6, 2007, rough waves with a significant wave height of 6 m and wave period of 14 s due to typhoon 0709 attacked the Shonan coast. After the wave attack, scarp was formed in an extensive area of the coast, where beach nourishment has been carried out. Many surfing grounds on the Shonan coast, where is famous at surfing, were damaged by this wave attack. These damages in terms of coastal protection and surfing were investigated through the comparison of the shoreline changes and changes in longitudinal profiles as well as the analysis of the wave information for the surfers. As a result, although the shoreline was kept intact, bar formation was confirmed due to offshore sand transport. It was found that the surfing grounds were significantly affected by this offshore sand movement, but the total sand volume in the zone shallower than the depth of closure (9m below the mean sea level) was maintained.
