Bohrok Nest

The Mata Nui Bohrok Nest was the place where the Bohrok slept until Makuta awakened them earlier. It was connected to Makuta's lair. All the Bohrok and Bohrok Va came from it. It was the home of the Bahrag as well.

Geography
The nest was in Mount Ihu. The entrance tunnel eventually led to a chamber with an opening that led to the heart of the nest. However, this room was destroyed by Tahu.

Far underneath the heart of the nest was the Bahrag's chamber, which contained 48 niches for Krana to fit in. There were six passageways, each with Exo-Toa armor inside. There were also six tubes full of energized Protodermis in the chamber.

The entrance tunnel just led to an opening to the Bahrag's chamber, though there was a sharp drop to the ground. There was a cube floating in the center that contained the Bahrag. It wasn't destroyed because it was a part of Mata Nui.

History
Originally discovered by Takua (As seen in the Mata Nui Online Game), the Bohrok awoke at Makuta's call, and Takua thought it to be his fault.

After the Bahrag were defeated and the Toa left, an avalanche covered the entrance, but Pahrak Kal uncovered the entrance. The Exo-Toa went on auto pilot and fought the Kal, but to no avail. They were just about to put in the Toa Nuva's symbols when the Toa arrived and defeated them.

Trivia
There was also a Metru Nui Bohrok Nest, but it contained minute amounts of Bohrok compared the the Mata Nui nest. Krakua awakened the Bohrok there.