As popular a destination as the Hawaiian Islands are, there is much that has remained unseen-until now! This National Geographic program explores a marine sanctuary on the Northwestern Islands, a mammoth monument teeming with spectacular natural wonders, including coral reefs, rare species, and more aquatic amazements to behold. 50 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital stereo; Subtitles: English (SDH); photo gallery.