Abstract
The Seisho parking area is located in the west part of the Seisho Bypass running along the Seisho coast. This parking lot was protected by a wide sandy beach in the past. Recently, beach was severely eroded, and seawall protecting the parking lot was exposed to waves, and it was damaged owing to storm waves and the scouring. In this study, the causes of the beach erosion and the damage to the parking lot were investigated using aerial photographs and the Narrow Multibeam survey data along with the analysis of the shoreline changes. Future measures were also discussed.
