During Thursdays class, we walked to the ocean to look at the types of coastal defenses applied. We saw two types, the sea wall and rock defense (rip-rap). The sea was was included twice, as there was one further out into the sea. I would guess this would be to halt the occurring tsunamis at the distance. The sea wall closer to the rocks tries to prevent the water from entering the land of Rokko Island. The rip-rap prevents water erosion, protecting the shoreline.
Class trip to the Ocean