The Great Cavern of Unatta

The great, yawning cavern of Unatta is a massive cavern shaft that sinks down into the Onyx Valley below. Unatta is famed for its luminescent algae and unique fireflies that illuminate the interior as well as its forking waterfall, which runs down from the lake of Aelondë and descends past Onyx Valley all the way into the Underworld. The Monastic Crypts of the Embalmers of Unatta lies on the western cliffs of Unatta, who claim the cavern as their domain.