CNN Anderson Cooper 360 May 28, 2015 03:20:00
Your legs forward. >> this is probably the number one rescue device that we use most offn to save people. this is called a throw bag. >> reporter: inside 65 feet of rope. i played the victim and the bag and rope is thrown. it's a complete pass. these currents are very dangerous. you get tide up round rocks, branchs and at the bottom of the water and you tread for a while, you tire very quickly and then you be in a lot of trouble. that's why ivan in good weather, it's important to stay away from bodies of water like this with currents. >> frank will get out here on this perch. you ready? >> rep...