How Fast Can The WORLD'S SMALLEST Water Jetpack Actually Be? 🚀 In this video, I find out if using this underwater jetpack can help me find more river treasure! Using my metal detector and scuba gear, ...

We’ve all dreamt, with tears in our eyes, of one day flying with a jet pack. The inherent danger of ... a pump that drags along behind you pushing water through nozzles on your back.