How To Break A Rubik's Cube Record Underwater, In One Breath

Step 1: You will need

Step 2: Lube Your Cube

It's easy to move a cube around above water, but below, the water can make the plastic stickier, and harder to handle. Spray the cube with silicone, making sure the resistance from the water will be countered by the lube in the cube.

Step 3: Weights

In very shallow water, strap on a weight belt that's about 15% of your body weight, just heavy enough to keep you sitting comfortably at the bottom of the pool, but light enough to come up whenever you want.

Step 4: Breath Control

Meditate, breathe calmly. This will lower your pulse, so your body will need less oxygen. Make sure a friend is rolling video and breathe 3 deep breaths. On the last one, exhale fully, crunching your stomach, and then calmly take a very deep breath. Immediately sink into the pool.

Move just enough to get the job done. The less you move, the less oxygen you need.