Take the Flamingo Swim Toy and, using the duct tape, tape the flask of strong alcohol (top pointing rearwards) to the back of the toy. Wrap the railway themed towel over the Flamingo (ensuring it cannot slip off) and, using the string, make four 'grab handles' (one at each corner). Take the lighter and move everyone (including the Flamingo) into the water. With everyone holding onto the grab handles, undo the top of the flask and light the alcohol - This will propel the Flamingo (and those attached) through the water like a rocket, taking them to safety!
Either that or just set fire to everything to produce a smoke signal while you drink the beer awaiting rescue!