The world beneath the waves, at least in places that are clean enough, is rich with wondrous and beautiful sights and creatures. But rare are the people who are able to enjoy those firsthand because of the restrictive nature of underwater diving. Scuba diving gear, which is meant to provide some amount of liberation, practically straps about 50 kg of equipment on your body just to make that possible. Couldn't there be an easier, lighter way to marvel at underwater treasures even just for a little while? Industrial designer Cathal Redmond and his Express Dive invention claim there might be.