Industrially mass-produced, this interlocking pre-cast reinforced concrete module is an inseparable part of coastline infrastructure. Employed to transform and utilize the water edge, it is engineered to break the wave before the wave breaks what is behind it. It is designed to protect the water routes, the harbors, the artificial islands and lighthouses. In the case of Bolderāja, it protects the delta of the River Daugava from being filled with sand so that large ships can continue entering the Freeport of Riga. At the same time its prime location on the waterfront and its relationship to human scale creates a curious other function for the locals.