海かい中ちゅう展てん望ぼう塔とうMeaningsNoun1. underwater observation towerKanji used海sea中in展exhibit望hope塔towerComposed of海かい中ちゅうin the seaNoun展てん望ぼうview; outlook; prospectNoun塔とうtower; steeple; spire; stupa; pagoda; dagobaNoun