《蔚蓝之境》是中国的纪录片团队第一次以自然纪录片的方式，全面、系统地拍摄海洋的故事，也是迄今为止我国规模最大、范围最广、内容最为全面的海洋拍摄行动。本片共 6 集，以中国近海为舞台，带领观众纵览海面冰封的渤海湾，四季分明的黄海、东海，长夏无冬的南海，分别从季节、潮流、滨海湿地、海岛、海湾、生存挑战等几个角度，讲述海洋生物的故事，呈现一片神秘、壮阔、活力的蔚蓝之境。

"Blue Realm" is the first time that a documentary team in China has comprehensively and systematically filmed the story of the ocean in the form of a nature documentary, and it is also the largest, widest and most comprehensive marine shooting operation in China so far. This film consists of 6 episodes, taking China's offshore as the stage, leading the audience to view the frozen Bohai Bay, the Yellow Sea and the East China Sea with four distinct seasons, and the South China Sea with long summer and no winter, respectively from the seasons, trends, coastal wetlands, islands, bays, survival challenges and other perspectives, telling the story of marine life, presenting a mysterious, magnificent and vibrant blue land.