Jupiter Jet Adventures, West Palm Beach

It's not uncommon for a person to do a double take when walking along the north side of Sailfish Marina. Out in the water—defying all laws of gravity—they'll often see a person flying high into the air. Strapped to his or her back is a powerful jet pack, which uses pressurized water to send its wearer high above the ocean below.

Jupiter Jet Adventures' owner and resident captain Ryan Benjamin mans a nearby jet-ski, making sure everything goes as smooth as a dolphin that really takes care of his skin. Before the flights, he and his staff teach the jet-pack flyer how to maneuver.