If I could have superpowers, I'd have the ability to fly at the speed of light, to breath in space and to breath underwater.
Imagine it: I could fly up into the pillows of clouds and into the cold blackness of space, swim to the dark depths of Challenger Deep, and simply escape from life and all reality on the surface.
I could traverse the galaxies at the speed of light, perhaps finding new life and proving once and for all what I've always believed - that we're not alone in the universe. I could explore the nebulas, the newborn and dying stars, dozens of planets, fly to the very edge of space, and perhaps even come across a black hole, though of course I'd be smart enough not to go anywhere near it. And the cold, dark emptiness of space provides perfect solitude; I could stay there forever, gazing at the stars, and picking which one to explore before blasting off at lightspeed for it. Or I could simply fly to the moon, sit on its dusty surface on the top of one of its many craters, and stare across at Earth as it drifts in and out of daylight and nighttime, over and over again, gazing at its daily motions and that of humanity's as well. A dream come true, indeed.
Or I could explore all of the oceans, and discover secrets unknown to mankind. The lost city of Atlantis, perhaps, if Plato was really telling the truth; all its secrets and treasures in all their glory and perhaps even its people who are cut off from all contact with the surface world. Or lifeforms completely unimaginable to man residing in dark, unexplored depths. I could get close to and touch the most magnificent lifeforms, ones which few if any men have laid eyes or hands on. Perhaps if some schools of fish, whales or turtles were migrating, I could hitch a ride with them, letting them take me wherever they're going. And how could I forget the thrill and adventure of coming into contact with some of the most spectacular and dangerous sea creatures known to man, like the great white shark; imagine the adrenaline rush of seeing one, then swimming away at top speed if they should think I'm food and chase after me. And besides, sometimes the company of animals beats that of humans; perhaps a little swim with some blue whales, dolphins or whale sharks. We don't have to talk; just a little company together would be perfect. :) Oh, and how could I forget Challenger Deep? The deepest, darkest point on Earth, that only a few submersibles have ever explored. The unbelievable quiet and darkness of it, once again perfect solitude.
Or I could simply fly up into the clouds, and lie there staring up at the blue sky as it melds into the atmosphere separating the Earth from space. I could then travel to anywhere in the world I want to, visiting all the places and seeing all the sights I've longed to see my whole life. And I'd never get lost, either; I'd simply fly up into space and back down home whenever I like.
Oh, the possibilities. I couldn't ask for anything more, really. But if only I weren't a normal human being. :)