The Arrow Cave functioned as a base of operations for the super-hero known as Green Arrow.
Located beneath the old Queen estate in Star City, the immense cavern allowed the heroes the ability to hone their archery skills. It also provided shelter for the Arrowcar and Arrowplane.
The Arrow Cave first appears in chapter five of the online Injustice comic series, where Green Arrow hides Harley Quinn from Superman after the Joker's murder. Harley constantly suggests to Arrow to change the name to "the Quiver". In chapter fifteen, when Green Arrow takes Harley Quinn to Arkham Asylum after she caused a fire in the cave. It reappears once again in the annual, being the scene of Arrow, Black Canary and Harley Quinn's showdown with Lobo.