if you are close to a stream than you have a natural frig. I used this this past season on my elk on a 80 deg day.take some sticks thick enough to hold the weight and lay many of them over the creek/stream about 2 to 3 inches over the water.lay the meat on them in meat bags works best.poor clean water on them to speed up the cooling and then cover them with a good layer of green tree branches.the water where I hunt on a hot summer day is about 45 deg and works just like a frig when 2 inches from the meat.