Green Garden is an isolated area in northern Manoa Lai, aptly named for its high abundance of kelp. Bigfin Reef Squids and a few Great Barracudas can be found here at night. The corridor leading here is filled with tall kelp stalks and colorful coral, along with small fish, like Yellow Tang and Longnose Butterflyfish. Weedy and Leafy Seadragons can be found hiding in the luscious green fronds. Within the garden, Bearded Seals make their home, along with Dwarf Sawfish and a single Giant Clam in the center.
Green Garden is reportedly quite dangerous, as the forest of kelp can apparently tangle divers to such an extreme that people (Including, supposedly, Patrick Sunday) have been lost here. Late in the storyline, the player nearly meets this fate when they get tangled in some kelp and are unable to swim to the surface, but you call your dolphin partners to rescue you, thus avoiding being buried in a watery grave.