For all you adrenaline junkies out there, here is a great new watersport that will have you literally flying underwater.
Step 1 - purchase a Subwing.
Step 2 - attach it to a boat and set off at a safe speed of 2-4 knots.
Step 3 - Fly through the water with dolphin like agility doing spins and turns like superman (perhaps aquaman?) The Subwing allows complete control of movement enabling you to do all kinds of underwater acrobatics.
Awesome, why swim when you can fly. Indeed.