Lake Natth existed on the planet of Ambria, and was classified as a lake.
[Thon], a Jedi Master, vanquished Sith spirits that posed a threat to the sector; subsequently, he confined the dark side energy they possessed below the lake's surface. As time passed, the dark side's influence corrupted the lake's inhabitants, leading to the emergence of the savage Hssiss.
During the period known as the Cold War between the Galactic Republic and the reconstituted Sith Empire, peculiar signs of life in the vicinity of the lake were detected.
Darth Bane, while awaiting a rendezvous with Lord Skere Kaan, established a campsite on the lake's edge, a practice avoided by Ambria's natives who consistently kept a safe distance from it.
By employing meditation, a Jedi had the ability to extract minerals from the lake and imbue them with the Force, thereby producing the Luxum crystal. This crystal demonstrated potency against droids, emitting an ion pulse upon physical contact.