Ga-Wahi
Ga-Wahi was a region situated to the east on the island of Mata Nui, inhabited by Ga-Matoran and various Rahi. The region once fell under the domain of Teridax, though that connection did not endure. Ga-Wahi no longer existed in later records.

Ga-WahiWahiThe Matoran word for region. The six Wahi of Mata Nui were the six elemental territories that made up the island before the Bohrok cleared its surface. was the water region of the island of Mata Nui, lying to the east and home to the Ga-MatoranGa-MatoranThe Water-element Matoran of Ga-Metru and Ga-Koro, exclusively female, who taught the schools of Metru Nui and crewed the boats and bridges of the Mata Nui coast.. The name follows the standard prefix for water, the same root that names the village of Ga-KoroGa-KoroGa-Koro is a village on the island of Mata Nui, inhabited by the Ga-Matoran and associated with both Nokama and Gali. The settlement was formerly under the power of Teridax., the water temple Ga-Kini, the Ga-Suva shrine, and the GahlokGahlokWater-element Bohrok swarms that flooded Mata Nui's aquatic zones with relentless purpose. Bohrok.
The region centered on Ga-Koro, the Ga-Matoran settlement, which was linked to the Ga-Wahi beach by the Ga-Koro Bridge. The bridge's gate was opened by a stone balance and stood guarded by Ga-Koro guards. Within the region also lay the Great Temple and the East Garden, where Ga-Matoran gathered Harakeke plants and Cowrie Shells to make flax. The job of Flax Gatherer belonged to HahliHahliA Ga-Matoran scholar who rose to become Chronicler of Mata Nui, then Toa Inika, then Toa Mahri of Water during the final crises of the Matoran Universe. until she became the next Chronicler.
Ga-Wahi was patrolled and defended by the Ga-Koro Defense Force, a body of the Mata Nui Military commanded by Hahli and Macku. The force ranged across the region in green motorized boats, carrying Bamboo Poles and Bamboo Disks as weapons, with Kolhii Sticks used on occasion.
Many aquatic RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. lived in Ga-Wahi, among them Dermis Turtles, Hoi, TarakavaTarakavaHuge lizard-like Rahi with powerful forelegs, hunted in pairs across Mata Nui and Metru Nui., Takea, Ruki Fish, Keras, Lightfish, Razorfish, Razor Whales, Cave Fish, GadunkaGadunka (Species)Finger-sized sea Rahi from the abyssal zones around the Pit, one of which was mutated to enormous size by exposure to the Mask of Life., Makuta Fish, Proto Drakes, Waikiru, and at least one Great Temple Squid. When the Bohrok swarms were released to cleanse the island, structures such as the Ga-Koro Bridge and the East Garden were destroyed.
The region passed out of use when the Ga-Matoran migrated from Mata Nui to Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive., and later to Spherus MagnaSpherus MagnaA desert world of ancient conflict that became the merger point of the Matoran Universe and Bionicle's true endpoint..
Gallery

Images via BIONICLE Wiki (Biosector01)
Sources
- WikiGa-Wahi — Bionicle Fandom wiki cross-reference
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Related entries
Ga-Koro
Ga-Koro is a village on the island of Mata Nui, inhabited by the Ga-Matoran and associated with both Nokama and Gali. The settlement was formerly under the power of Teridax.
Ga-Matoran
The Water-element Matoran of Ga-Metru and Ga-Koro, exclusively female, who taught the schools of Metru Nui and crewed the boats and bridges of the Mata Nui coast.
Wahi
The Matoran word for region. The six Wahi of Mata Nui were the six elemental territories that made up the island before the Bohrok cleared its surface.
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Finger-sized sea Rahi from the abyssal zones around the Pit, one of which was mutated to enormous size by exposure to the Mask of Life.
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Amaya's Hut was a small driftwood dwelling in Ga-Koro that housed a Flax Weaver, a jellyfish lamp, and the quiet labor of Matoran daily life.
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Small carved stones inscribed with the Three Virtues, the six Principles, and the six Kohlii Skills, used as keys to the six Wahi temples on the island of Mata Nui.
Climbing Hook
Standard tool of the Gahlok Va, carried in the left hand to maintain grip on the slick surfaces produced by water-aligned cleansing operations.
Ga-Koro Defense Force
The Ga-Matoran militia that patrolled Ga-Wahi with bamboo poles, motorized boats, and tamed Keras, and held the village during the Bohrok War.
Ga-Koro Waterfall
The Kaukau-shaped Naho Falls above Ga-Koro, concealing the southern approach to the Kini-Nui and rebuilt in the form of a Kaukau Nuva after the Bohrok War.
Ga-Matoran
The Water-element Matoran of Ga-Metru and Ga-Koro, exclusively female, who taught the schools of Metru Nui and crewed the boats and bridges of the Mata Nui coast.
Ga-Suva
Gali's shrine in Ga-Koro, the floating village's repository of her Kanohi and the Nuva Symbol whose light broke the Pahrak siege.
Ga-Wahi Beach
The shoreline outside Ga-Koro where the Toa Metru first set foot on Mata Nui, later flattened by the Bohrok swarms during their reawakening.
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The Toa Nuva of Water and conscience of the Toa Mata, whose attunement to her element anchored the team across every campaign from Mata Nui to Karda Nui.
Ghekula
Small amphibious Rahi displaced from the swamps of Le-Wahi by the Bohrok swarms, considered lucky by Matoran and once peddled by Ahkmou.
Hahli
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