The Arrow Cave functioned as a base of operations for the super-hero known as Green Arrow and his partner Speedy. 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 Arrow Car and Arrow Plane. In recent years, the swamp monster known as Solomon Grundy had taken to using the cave as a private shelter. He has since abandoned the cave however following a fight with Green Arrow and Arsenal.