Attenborough explores the planet's undersea habitats, revealing the greatest age of ocean discovery and emphasizing the ocean's vital importance while exposing its problems and highlighting opportunities for marine life recovery.
温馨提示：[DVD：标准清晰版] [BD：高清无水印] [HD：高清版] [TS：抢先非清晰版] - 其中，BD和HD版本不太适合网速过慢的用户观看。
