The mirelurk nesting hole is a location in Fallout 3.
This is a cave complex reached through a sewer grate south of the reflecting pool in The Mall. In many places there are radioactive streams of water leaking down. Originally home to a small number of humans who hid here seeking refuge, they apparently perished from the radiation or the giant ants and mirelurks that chose to make it their nesting place.
A little ways after you start out, you will meet a fork in the path. Both tracks will converge later on, the right path eventually dropping into the left path from above. Following the path will lead to a circular chamber used by the mirelurks as a nesting site which is protected by at least one mirelurk of higher level than the rest (a mirelurk hunter, king, or both).
- Nuka-Cola Quantum: Southwestern chambers (the one with the high level mirelurk), crammed up in the corner. Hug the western wall (up past the rubble pile), next to a Ham radio. (B)
- Chinese Army: Special Ops Training Manual in a cave in the northwest corner of the main southern chamber. Almost straight north of the ham radio and Nuka-Cola Quantum. (A)
The mirelurk nesting hole appears only in Fallout 3.