This modern whale easily and efficiently builds harbours very quickly. Kugira is the Japanese word for whale, which is a perfect comparison for this gigantic creation. Being so large, this vessel is amazingly efficient to move materials that are used for the creation of big water structures. Think of a 20 floors apartment building. Although similar in size to such a residential set of homes, I don’t think they’d be able to float like our beloved Kugira does.