Mount Ihu
A snow-capped peak in Ko-Wahi where Kopaka sought his first mask and Nuju honored his mentor.

Ko-WahiKo-WahiKo-Wahi is a region situated directly above Ko-Metru, inhabited by Matoran, Turaga, Toa, and Rahi. It was formerly under the control of Teridax.'s tallest peak is also a monument to loyalty, a training ground for reluctant heroes, and the quietest place on the island. The mountain dominates the Ko-region's icy terrain, accessible only to those willing to scale its unforgiving slopes. NujuNujuNuju served as a Ko-Metru seer, Toa Metru of Ice, and Turaga of Ko-Koro who spoke only in bird calls translated by Matoro., TuragaTuragaFormer Toa who fulfilled their destiny and transformed into leaders. Turaga wield Noble Kanohi masks and weakened elemental powers, guiding their communities. of Ko-KoroKoroThe Koros were the six elemental villages built on Mata Nui after the Great Rescue, on sites the Toa Metru had chosen, each tied to one element and one Turaga., named it in honor of Ihu, the Ko-MatoranKo-MatoranIce Matoran who were quiet scholars and star-watchers, built to survive the frozen peaks of Ko-Wahi. teacher who shaped him before the Toa Mata's arrival.
NujuNujuNuju served as a Ko-Metru seer, Toa Metru of Ice, and Turaga of Ko-Koro who spoke only in bird calls translated by Matoro.'s Tribute#
When the Toa Mata arrived on Mata NuiMata Nui (Location)An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years. and the island's future hung in balance, NujuNujuNuju served as a Ko-Metru seer, Toa Metru of Ice, and Turaga of Ko-Koro who spoke only in bird calls translated by Matoro. chose to honor his past. In BIONICLEBIONICLE: Matoran AdventuresA 2002 GBA platformer where you play as one of six Matoran fighting Bohrok across Mata Nui's islands. Adventures 6: Maze of Shadows, NujuNujuNuju served as a Ko-Metru seer, Toa Metru of Ice, and Turaga of Ko-Koro who spoke only in bird calls translated by Matoro. climbs the central mountain and reflects on his Ko-MatoranKo-MatoranIce Matoran who were quiet scholars and star-watchers, built to survive the frozen peaks of Ko-Wahi. teacher, Ihu, whose guidance shaped him years earlier. The tribute isn't ceremonial or performative. He names the peak Mount Ihu outright, claiming it as a permanent marker of gratitude on the island's frozen face.
This detail matters. NujuNujuNuju served as a Ko-Metru seer, Toa Metru of Ice, and Turaga of Ko-Koro who spoke only in bird calls translated by Matoro. could've called it Peak Ko or Ice Crown or any number of generic names. Instead, Ihu's name would live on in the mountain itself. The mountain becomes an extension of his teacher's legacy, a constant reminder of where he came from before duty called him to lead Ko-KoroKo-KoroKo-Koro is a location in Ko-Wahi, home to the Ko-Matoran and associated with both Nuju and Kopaka. Its exact size is unknown..
KopakaKopakaKopaka was the Toa Nuva of Ice, the loner of the Toa Mata, and one of the six warriors created on Artakha to protect the Great Spirit Mata Nui.'s Solitude#
KopakaKopakaKopaka was the Toa Nuva of Ice, the loner of the Toa Mata, and one of the six warriors created on Artakha to protect the Great Spirit Mata Nui. made Mount Ihu his territory from his earliest days on Mata NuiMata Nui (Location)An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years.. In BIONICLEBIONICLE: Matoran AdventuresA 2002 GBA platformer where you play as one of six Matoran fighting Bohrok across Mata Nui's islands. 1: The Coming of the Toa, the Ice Toa departs for the mountain in search of his first KanohiKanohiMasks that grant powers and sustain life, they're the most vital artifact in the Matoran Universe. mask, the Hau. The mountain is described as a "place of far-seeing," which tracks for a snow peak jutting above Ko-WahiKo-WahiKo-Wahi is a region situated directly above Ko-Metru, inhabited by Matoran, Turaga, Toa, and Rahi. It was formerly under the control of Teridax.'s mist and offering perfect visibility across the region.
On those slopes, KopakaKopakaKopaka was the Toa Nuva of Ice, the loner of the Toa Mata, and one of the six warriors created on Artakha to protect the Great Spirit Mata Nui. encounters another wanderer who buries him under a pile of rocks. The meeting's strange, but KopakaKopakaKopaka was the Toa Nuva of Ice, the loner of the Toa Mata, and one of the six warriors created on Artakha to protect the Great Spirit Mata Nui. soldiers on anyway. By BIONICLEBIONICLE: Matoran AdventuresA 2002 GBA platformer where you play as one of six Matoran fighting Bohrok across Mata Nui's islands. 9: Divided We Fall, KopakaKopakaKopaka was the Toa Nuva of Ice, the loner of the Toa Mata, and one of the six warriors created on Artakha to protect the Great Spirit Mata Nui. is shown alone on Mount Ihu's slopes, pondering the fractured team. The mountain had become his thinking place, his refuge in ice when the weight of leadership grew too heavy. The Mata NuiMata Nui (Location)An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years. Online Game confirms players can access Mount Ihu to find MatoroMatoroA quiet Ko-Matoran translator who became a Toa Inika and then a Toa Mahri, Matoro gave his life with the Mask of Life to restore Mata Nui., deepening the mountain's role as Ko-region hub and a destination for those seeking guidance or solitude.
Compiled from primary sources by Lore Fortress editorial. Reviewed by Joe Garratt, Editor-in-Chief.
Sources
- BookBIONICLE Adventures 6: Maze of Shadows, Nuju names Mount Ihu after his Ko-Matoran teacher
- ComicBIONICLE 1: The Coming of the Toa, Kopaka seeks his first mask on Mount Ihu
- GameMata Nui Online Game, Mount Ihu accessible as an explorable location
- SerialReign of Shadows, Mount Ihu referenced in the final saga
- WikiMount Ihu, BS01 reference entry
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

Mata Nui (Location)
An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years.

Koro
The Koros were the six elemental villages built on Mata Nui after the Great Rescue, on sites the Toa Metru had chosen, each tied to one element and one Turaga.

Turaga
Former Toa who fulfilled their destiny and transformed into leaders. Turaga wield Noble Kanohi masks and weakened elemental powers, guiding their communities.

Ko-Matoran
Ice Matoran who were quiet scholars and star-watchers, built to survive the frozen peaks of Ko-Wahi.

Ko-Koro
Ko-Koro is a location in Ko-Wahi, home to the Ko-Matoran and associated with both Nuju and Kopaka. Its exact size is unknown.

Ko-Wahi
Ko-Wahi is a region situated directly above Ko-Metru, inhabited by Matoran, Turaga, Toa, and Rahi. It was formerly under the control of Teridax.
Mentioned in19 entries
Azibo
Azibo was an Onu-Matoran prospector of Onu-Koro, the Chief Prospector's most trusted hand and a student of the Principle of Prosperity.
Crystal Climber
Crystal Climbers were predatory Rahi that nested atop the Knowledge Towers of Ko-Metru, preying on Ice Bats. Hard to dislodge once settled, they were regarded as pests, and some later settled around Mount Ihu on Mata Nui.
Ice
Ice was one of the six primary elements of the Matoran Universe, tied to preservation, stillness, and the cold reaches of Ko-Metru and Ko-Koro.
Kopaka
Kopaka was the Toa Nuva of Ice, the loner of the Toa Mata, and one of the six warriors created on Artakha to protect the Great Spirit Mata Nui.
Naho Bay
The body of water that made up most of Ga-Wahi, named for a fallen Toa of Water and home to the floating village of Ga-Koro on its surface.
Nixie
Nixie was a Ga-Matoran Astronomer of Ga-Koro who tracked the Red Star, recorded prophecies, and supplied Takua with the Gnomon that opened the Onu-Wahi Sundial.
Sanctum Guard
The defence force of Ko-Koro, fourth-largest of the Matoran militaries on Mata Nui, charged with protecting the village and holding the Tren Krom Break against Rahi attacks during the Great War.
Tahu (2001)
Tahu was the Toa Mata of Fire and leader of the team, from his first landing on Ta-Wahi Beach to the destruction of Teridax's Rahkshi army on Bara Magna with the Golden Armor.
The Great Cataclysm
The day Makuta Teridax put the Great Spirit to sleep, the Great Spirit Robot fell from the sky, Metru Nui flooded, and Voya Nui tore loose from the Southern Continent.
The Great Sundial
The Great Sundial of Onu-Wahi was a large organic disk buried beneath the Great Mine of Onu-Koro that opened a passage into Mangaia and later, in shrunken form, guided Takanuva to the Codrex during the Battle of Karda Nui.
The Ice Shield: Kopaka's Toa Tool
Kopaka's Ice Shield was both defensive armor and a vehicle for channeling his elemental power, carried from his Toa Mata days through the Toa Nuva era.
The Sanctum
The central meditation hall of Ko-Koro on the island of Mata Nui, the seat of Turaga Nuju, and the only chamber on the island in which the Wall of Prophecy could be read in full by the Ko-Matoran Scribes and Adepts.
+ 7 more
Get new articles in your inbox
No spam. New lore drops, canon conflicts, and deep dives only when they’re worth reading.
Some links on Lore Fortress are affiliate links. If you buy through them we earn a small commission at no extra cost to you.










