A rescue signal device for indicating the location of a person requiring rescue attention. The rescue signal device includes a canister. The canister has a lumen therein adapted for holding helium under relatively high pressure. The canister has an aperture therein for access into the lumen. A valve means releases the helium from the canister. The valve means is fluidly mounted to the aperture in the canister. A balloon has an opening therein. An elongate tube has a first end and a second end. The first end of the tube is fluidly coupled to the valve means. The second end of the tube is fluidly coupled to the opening in the balloon, such that the helium may enter the balloon via the tube.