So I came up with the Libelule: a spherical vehicle with two large wheels that allow it to travel almost anywhere.

Feel like roaming the beach? Let it roll. Want to hit the water? The wheels scoop water like a paddle boat, propelling it faster than today's amphibious crafts.

When you feel like a dive, select your desired depth on the (thankfully waterproof) touch screen, let the water pumps fill the cockpit with water that serves as ballast, and put on your scuba mask. Once filled, the vehicle could use that internal ballast to manage depth and play with the level of water inside the cockpit as well.

Underwater, those same wheels move the Libelule along with the help of a special tail section. That touchscreen will keep you up to speed on the Libelule's condition and display all relevant data, like speed, battery range, available oxygen, depth, and so on.