After the Red Lotus captured the airbenders at the Northern Air Temple, they were sent to this cave to be kept as prisoners, guarded by several Red Lotus sentries. After Zaheer defeated Korra, he tied her up in chains in the sanctuary of the hideout. Kai, managing to escape being captured, found the cave after following the Red Lotus on his sky bison, Lefty. He led Team Avatar, Tenzin, Lin, and Suyin Beifong to the hideout. They defeated the Red Lotus sentries who guarded the airbenders and escaped.